Category Archives: Science and Technology

4 charging mistakes you should not ignore

Many phone users tend to complain that their device’s batteries discharge quickly. Here are some 4 mistakes that users typically make when charging their phones.

1. Low Battery

Avoid waiting for your battery to reach a critically low level before charging. The effect of this on your phone battery is not immediate, but over time it begins to manifest and it eventually stresses out your phone battery and shortens the battery life.

2. Keeping your phone case on while charging

Your phone typically emits heat when charging. To avoid exposing your device to ambient temperatures, it’s advisable to remove the phone case while charging your phone so that the heat emitted from your phone while charging can escape. This way you can prevent your device from becoming hotter and potentially overheating when charging. Charging your battery at uncomfortable temperatures can permanently damage battery capacity.

3. Charging wrongly

You should mind where you charge your phone because not doing so can negatively affect your battery capacity. Phones have a temperature range they can function normally and charging your phone in a hot area can raise the temperature and stress the battery out. Also, charging your phone in especially low-temperature areas, like in front of an air conditioner, can also cause problems for your battery that will eventually affect its optimum performance.

4. Charging your phone overnight

The least you’ll sleep throughout the night is most likely going to be between 5 to 8 hours, your smartphone battery typically only needs 2 to 3 hours to fully charge. Charging your phone overnight, constantly stresses your phone battery each night. Sooner than later, your phone is likely to have battery problems. In addition, the temperature rises when the battery is overcharged, so apart from shortening battery life, it can also threaten user’s safety in the event it quickly heats up and explodes. It’s better to charge your phone before you sleep and switch it off while sleeping to preserve the battery till the next day.

15 Shocking Health Effects Of Smartphones You Should Know

Smartphones are everyone’s daily companion. In fact, 50% of the Nigerian population owns a personal smartphone, and yes, including children. In this digital era, people have to keep up. Especially today that the demands of life increase – work, learning, and social life, the more reasons to use smartphones. However, everything too much brings no good. Too many sweets cause diabetes. Too much fries and burger lead to obesity and heart problems. Well, too much use of cell phones also increases your risk to various health problems.
In this article, we will discuss the top 15 damaging health effects brought by the everyday use of smartphones:

15. Smartphone Addiction

An average individual spends at least five hours a day on their smartphone. This dependence on the smartphone can develop into a serious addiction. Based on a study, 72% of people have this so-called “nomophobia” or the fear of having no phones. In fact, 70% of American women admit that they experience phone separation anxiety.
14. Withdrawal Symptoms
When people become addicted of their symptoms, they will experience withdrawal symptoms. Like drug and alcohol addicts, people with smartphone addiction experience panic, confusion, and physical distress without their phones. Based on a 2011 study among 1,000 students, a ‘clear majority’ of them showed withdrawal symptoms when their smartphones are being confiscated for 24 hours.

13. Musculoskeletal Problems

The excessive use of a smartphone can lead to the development of back problems. According to the British Chiropractic Association, more young people experience back problems due to smartphone use. Based on a 2015 statistics, 45% of young people between 16 and 24 years suffer from musculoskeletal problems, especially their back. On the other hand, excessive and continuous use of smartphones can cause “text claw” – a pain in the tendons or muscles in your fingers and wrists.

12. Nerve Damage

A recent study linked the use of a smartphone to the development of “occipital neuralgia”. It is a neurological condition in which nerves that linked your head and your spine are compressed or inflamed. There is no cure for this condition. However, the pain can be managed through medication, massage, and yoga, among others.

11. Stress & Depression

Stress is the most direct impact of smartphone use. Based on a 2012 research, responding to incoming alerts and notifications can cause stress. Excessive use can also stress the eyes, nerves, and other body parts which affect overall functioning. Moreover, it can also lead to depression. A Northwestern University study revealed that the more you spend time with your phone, the more you are depressed.

10. Weight Gain

When you spend at least five hours a day on your smartphone, of course, you miss hours or even minutes of doing daily exercise and cooking healthy meals. In short, you become inactive. The stress that the smartphone is causing you also encourages your body to seek for more food. Further, this sedentary lifestyle can lead you to obesity, diabetes, and heart disorders.
9. Sleep Deprivation
In a 2013 study, three-fourths of the world population sleep with their smartphones. Smartphone emits radiofrequency waves and bright light which contribute to sleep deprivation. According to Harvard researchers, the light that smartphones emit can suppress melatonin production, the hormone that balances your sleep cycle. Based on a 2015 study, smartphone light causes insomnia than drinking a cup of coffee.

8. Poor Concentration

Studies suggest that smartphones diminish productivity and performance. It reduces your attention span when you are working on detailed and difficult tasks. Moreover, the presence of smartphones in social settings steal your attention. It decreases your concentration in responding to external stimuli because you are focused on your smartphone.

7. Violent Behavior

Smartphones provide easy access to any type of content – including violence. The more you are exposed to violent-themed news, videos and other forms of content, the more you are likely to develop a violent behavior, especially for children.

6. Decreased Social Interaction

The use of smartphones has negative effects on your social health. When you connect to the virtual world, you disconnect from the real world. According to a research conducted by the University of Essex, people who are more dependent on their smartphones have a low quality of relationship and less trust to their partners or families. A University of Maryland research also suggests that smartphone use can develop a selfish, antisocial behavior to people.

5. Prone to Accidents

The use of a smartphone is among the leading causes of car accidents in the world. Moreover, pedestrians who use their smartphones can increase their risk to a road accident. Based on a research, the use of cell phones can reduce brain activity to 37%, losing focus while driving. Thus, keep your eyes on the road, not on your phone.
4. Vision Problems
The American Macular Degeneration Foundation found out that the use of smartphones can lead to retinal damage or worse, macular degeneration which refers to the loss of central vision. Based on a survey of 2,000 people, 55% of them experienced eye discomfort after continuous use of smartphones. The blue and green light from smartphones also causes dry eye syndrome.

3. Reduced Hearing

The use of headphones can contribute to loss of hearing. According to the Dangerous Decibels, exposure to above 85-decibel sound or noise can cause hearing loss. Based on the records of National Institute on Deafness, about 26 million Americans suffer from noise-induced hearing loss, and one factor is the use of headphones.

2. Threat to Stamina

You may think your smartphone is clean, but it is a home to different types of bacteria. According to a study from the University of Arizona, smartphones host around 10 times the amount of bacteria found on your toilet. This can weaken your immune system which leads to various flu and diseases.

1. Cancer

Smartphones emit radio waves which can be absorbed by our tissues. These radio waves are a form of electromagnetic radiation which can increase a person’s risk to cancer. Researchers found out that exposure to radiation can enhance chemical carcinogens that develop into cancer. Some epidemiological studies found the relationship between smartphone use and the increased risk of different types of tumors.

How To Display Your Phone Screen On Your Tv

You can allow your TV access your phone. Just follow these easy steps to display your phone on your TV screen

How to Connect Using an HDMI Cable

Wired connections is an easy and reliable way to connect an Android to an HDMI input on the TV. By plugging the smaller end into your device and the HDMI end into your TV, your screen can share without needing an Internet connection because of a bad signal.

How to Connect Android to TV Wirelessly


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Wireless connections are a popular option for screen mirroring because you have the freedom to move around. In order to wirelessly connect an Android to the TV, you’ll need the following these easy steps:

1) A Miracast enabled Android device. Most Android 4.2 or later devices already have Miracast built in. A Miracast enabled TV or a wireless display adapter that supports Miracast. A wireless display adapter is a small device that you will plugs into your TV’s HDMI port. Your Android is able to communicate with the Miracast-enabled adapter wirelessly to screen mirror.


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To begin screen mirroring, follow these steps

  • Connect the wireless display adapter into your TV’s open HDMI port and into a power outlet.
  • Change the input source on your TV to the appropriate HDMI input.
  • In the settings menu of your Android, open the “wireless display” application.
  • Select your adapter from the list of available devices.
  • Follow the on-screen instructions to finish set up.
  • Note that all adapters are different and have various set up requirements. For adapters that require Wi-Fi, be sure that your Android and adapter are connected to the same Wi-Fi network. You can also refer to your adapter’s user manual for specific set up instructions.

Beware!! 7 Scary Things That Will Happen If The Sun Dies

The sun has a life span of about ten billion years, and we’re already heading toward five billion years in That brings up an important question: What exactly is going to happen once the Sun reaches its limit?

Ok, here are 10 things that will happen once the sun dies:

7. The Greenhouse Effect Will Become Extremely Effective

Sun
The hot sun

One of the first things that will happen once the Sun exhausts its hydrogen is that it will brighten a lot. The brighter the Sun gets, the more of its energy the Earth will receive. The gases in our atmosphere—such as carbon dioxide, methane, and nitrous oxide—work like a blanket and already hold in heat from our star, allowing the planet to support life. With the Sun working overtime, these gases will hold in more of its energy. The Earth will become extremely hot, causing water all over the world to evaporate and create a dense cloud in the atmosphere. This cloud will protect the Earth’s surface from the Sun’s radiation for a while. After enough time, though, the heat will become too much, and the oceans will start boiling. At this point, it will be no longer possible for life to exist on Earth. If we’re not dead by then, we would certainly die from lack of water and excessive heat.

6. The Sun Will Expand

The sun (image credit: Getty Images}

Not only will the Sun become much brighter, but it will also increase greatly in size. Once it uses up all of its fuel, it will move on to the next phase in its life cycle: the red giant phase. Even though it increases in size, the actual temperature of the red giant phase is lower, at just 2,000 to 3,000 degrees Celsius.[3] That may seem hot, but in comparison to the Sun’s usual surface temperature of roughly 5,000 to 9,000 degrees Celsius, it is definitely cooler.Although this is how the Sun’s demise will occur, it is not true for all stars. Smaller stars, known as red dwarfs, are so weak that they simply go out once they use up their fuel (though they last much longer than other stars). On the other hand, blue and white giants are so big that they’ll fuse heavier elements until they develop an iron core. After that, they go supernova.

Read also: 10 facts about black holes you don’t know

5. . . And Then It Will Shrink

The sun (image credit: Getty Images}

Over time, the Sun will continue to change. When it’s through fusing helium, it won’t be able to do the same with the carbon, and it will finally shrink to a white dwarf. This phase is much smaller than the size of the original Sun.White dwarfs have much less energy, but what they do have is longevity.

These star remnants continue shining on for billions and billions of years, until at some point, far in the future, they turn into dead black dwarfs. It is impossible to know exactly how long this process will take, because astronomers currently believe that the universe isn’t even old enough yet for any black dwarfs to have formed!

4. Life May Form In Other Places

Stars (Credit: Anastasiia Shavshyna)

Although life on Earth would be long gone by the time the Sun becomes a red giant, that doesn’t mean it won’t reappear elsewhere. Jupiter and Saturn are both large planets with many moons, which could be habitable.

Europa and Ganymede are two moons that currently contain ice. That may not sound too hospitable (Europa’s widely accepted subsurface ocean notwithstanding), but once the Sun increases in size, though, it’ll be close enough to possibly warm the ice and create an environment suitable for more familiar-looking forms of life to exist.

Read also: Know more about eclipse

3. The Outer Solar System Will Finally Feel The Heat

Black sun (Image credit: Getty Images)

As already mentioned, the Sun will become a lot larger and brighter once it starts to die. This will cause nearby planets to turn into fiery wastelands, but what about planets and dwarf planets that are freezing far away? Take Pluto, for example: Right now, the temperature of Pluto varies from –233 to –223 degrees Celsius (–387 to –369 °F). That is freezing.Once the edge of the Sun gets closer, however, it will be able to warm Pluto and the other outer bodies up. While it is unlikely that life will form because not every necessary condition exists, they will remain as warm remnants of what the solar system used to be.This will change as the Sun shrinks into a white dwarf, but at least the outer solar system will be able to have a bit of the Sun’s warmth before it dies forever.

Read also: Know more about the moon

2. Human Life Will Definitely Be Impossible On Earth

Sun on flowers (Image credit: Getty Images)

Life may occur elsewhere, but it definitely won’t be happening on Earth. Unfortunately, everything that we’ve worked toward will go to ruin once the Sun dies. The surface of Earth will be way too hot to even consider life being possible. Even if we somehow create new anti-heat technology, it is unlikely we would be able to grow anything to eat or find water to drink. Everything that is necessary for survival will cease to exist.It’s odd thinking that at some point, all of this will no longer seem to matter. The Internet will be long dead, along with every memory we have of our Earth. This is why it is simply a hope that somewhere out there, life will start again. It is highly unlikely, though, that this life will look anything like the human race. Even if they do have the same features, it will take billions of years for life-forms to evolve again to where we are today.

1. Humans Could Find Another Way To Make It

A girl (Credit: Justin Lambert)

It is hard to predict exactly what kind of technology we might have in the future, but it’s fun to imagine the possibilities. We’re already coming close to seeing automated cars and other futuristic devices. For all we know, at some point before our time is up, we may create a way to travel to faraway planets. We know of places that could be habitable, so if it came down to it, we could try some of them out. It’s even possible that our race will have already expanded beyond our horizons and into countless other solar systems by the time the Sun starts to die.In the news, NASA is already working on a mission to Mars. Many other companies have advertised trying to be the first to colonize the red planet. If such a mission were to succeed, it could be revolutionary for the future of the human race.

The goal is for humans to be sent to Mars in the 2030s, which isn’t so far off. Mars would be a small feat in comparison to going to an entirely new galaxy, of course. But as Neil Armstrong said, “That’s one small step for man, one giant leap for mankind.”We have to hope that we can avoid any other catastrophic events before we have a chance to search the universe. Most of what is out there is still unknown—our telescopes can only see so far. We do not know the entire expanse of the universe, nor do we know the extent of our own capabilities. Even though the end of the Sun may seem like the end of life as we know it, we could be wrong. For all we know, our minds could take us farther into the universe than we could possibly imagine.

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4 Amazing Features WhatsApp Is Bringing In 2020

Whatsapp is releasing amazing features to the app this year and here are just four(4) of the features we know for now.

Here is a list of the four new features coming to WhatsApp in 2020 also from pulse:

1. Dark Mode

According to Independent.co.uk, the Facebook-owned messaging app has been teasing the dark theme for months.

However, WaBetaInfo, a website that follows developments with the beta version of the app, has reported that the dark theme update is ready for the Android version of WhatsApp.

2. Disappearing Messages

This feature allows users to automatically delete messages after a stipulated period in both group chats and one-on-one conversations.

With this, The Guardian reports that users will be able to set the messages to be deleted automatically after an hour, a day, a week, a month or a year.

3. Ads (Advertisement)

The platform plans to start inserting promos into WhatsApp Status posts from 2020. This was reportedly revealed at the 2019 Facebook Marketing Summit in the Netherlands.

WaBetaInfo describes the ads as “status advertisements” adding that “they won’t be invasive and they will appear very rarely between a lot of status updates. ”

This feature is currently available on WhatsApp’s sister app Instagram.

3. Reverse Image Search

As the most popular messaging app across Africa, Whatsapp has been flagged as a major medium of choice for spreading fake news.

A recent report by the Center for Democracy and Development and the University of Birmingham on WhatsApp’s role during Nigeria’s February elections showed that parents and grandparents as the “biggest sharers” of misinformation.

The platform plans to fight the spread of fake news with a new feature called the reverse image search tool. This lets you figure out the original sender of any image.

WhatsApp’s previous attempts to tackle fake news includes letting users identify forwarded messages and limiting users to five text forwards.

NB: Remember to Subscribe To Receive News From Us Daily

Instagram to use AI to detect offensive captions

Instagram is to warn users when their captions on a photo or video could be considered offensive.

The Facebook-owned company says it has trained an AI system to detect offensive captions.

The idea is to give users “a chance to pause and reconsider their words”.

Instagram announced the feature in a blog on Monday, saying it would be rolled out immediately to some countries.

The tool is designed to help combat online bullying, which has become a major problem for platforms such as Instagram, YouTube, and Facebook.

Instagram was ranked as the worst online platform in a cyber-bullying study in July 2017.

If a user with access to the tool types an offensive caption on Instagram, they will receive a prompt informing them it is similar to others reported for bullying.

Users will then be given the option to edit their caption before it is published.

“In addition to limiting the reach of bullying, this warning helps educate people on what we don’t allow on Instagram and when an account may be at risk of breaking our rules,” Instagram wrote in the post.

Earlier this year, Instagram launched a similar feature that notified people when their comments on other peoples Instagram posts could be considered offensive.

“Results have been promising and we’ve found that these types of nudges can encourage people to reconsider their words when given a chance,” Instagram wrote.

Chris Stokel-Walker, internet culture writer and author of the book YouTube’s, told the BBC News the feature was part of a broader move by Instagram to be more aware of the wellbeing of its users.

“From cracking down on promoting images of self a harm, to hiding likes so people outwardly are less likely to equate their self a worth with how many people press like on their photos, the app has been making moves to try and roll back some of the more damaging changes its had on society.

Dozens arrested over WhatsApp global child abuse group

Spanish police say they have made a number of arrests across 11 countries in connection with a WhatApp group for images of child sex abuse.

Many of the “extreme” images in the WhatsApp group had been “normalised by most of its members”, according to police.

33 arrests were made in 11 different countries across three continents, with 17 arrests made in Spain. Many of those arrested or being investigated are under 18, including a 15-year-old boy.

Police arrested two individuals in Uruguay, one of whom was a mother who abused her daughter and then shared the images with the group.

man was also arrested for downloading child abuse images and encouraging other members of the group to make contact with young girls.

Disturbingly, urged them to seek out migrants who would be less likely to report abuse to the police.

The group has been under investigation for more than two years by Spain’s National Police following an email tipoff that alerted the force to the group’s existence.

The Spanish police coordinated their investigation with Europol, Interpol, and the Police in Ecuador and Costa Rica. As a result of this cooperation, arrests were also made in the UK, Ecuador, Costa Rica, Peru, India, Italy, France, Pakistan and Syria.

In a statement, the police said the group shared “paedophilic content, sometimes of extreme severity, together with other content that was legal but was not suitable for minors because of their extreme nature.

Police disclosed that members of the group had even created “stickers”, small digital images similar to emoji, of children being abused. The men and boys arrested in Spain came from a diverse range of social and cultural backgrounds, according to police.

One of the men arrested had fled his home in Italy to Salamanca, when the search was carried out, unaware that it was the Spanish police that had issued the warrant for his arrest.

The investigation will now focus on identifying the children being abused in the images.

Twitter prepares to delete accounts of inactive users(read, don’t be a victim)

Twitter will begin deleting accounts that have been inactive for more than six months, unless they log in before an 11 December deadline.
The cull will include users who stopped posting to the site because they died – unless someone with that person’s account details is able to login.

It is the first time Twitter has removed inactive accounts on such a large scale.
The site said it was because users who do not login were unable to agree to its updated privacy policies.

A spokeswoman also said it would improve credibility by removing dormant accounts from people’s follower counts, something which may give a user an undue sense of importance. The first batch of deleted accounts will involve those registered outside of the US.
The firm bases inactivity on whether or not a person has logged in at least once in the past six months. Twitter said the effort is not, as had been suggested by some users on the network, an attempt to free up usernames.
That said, previously unavailable usernames will start coming up for grabs after the 11 December cutoff – though Twitter said it would be a gradual process, beginning with users outside of the US.

In future, the firm said it would also look at accounts where people have logged in but don’t do anything on the platform. A spokeswoman would not elaborate, other to say that the firm uses many signals to determine genuine human users – not just whether they interact with, or post, tweets.

The site has sent out emails to users of accounts that will be affected by the deletions. The firm would not say how many current accounts fit the criteria, although it is expected to be in the many millions. It will send out more notice closures closer to the deadline.

The cull will not affect Twitter’s reported user numbers, as the firm bases its usage level only on users who login at least once a day. According to its latest earnings report, from September, Twitter has 145m “monetisable” daily active users (users who come into contact with Twitter’s advertising on a daily basis).

“As part of our commitment to serve the public conversation, we’re working to clean up inactive accounts to present more accurate, credible information people can trust across Twitter,” the firm said about the upcoming account removals.

“Part of this effort is encouraging people to actively login and use Twitter when they register an account, as stated in our inactive accounts policy.

It means users who have died will have their accounts removed unless a loved one or other person is already in possession of their login details, and is able to sign in and accept Twitter’s latest privacy policy.

Twitter’s current policy offers only deactivation of a dead person’s account once a trusted thirds patty – a parent, for example – has proven their identity. However, the policy states that in no circumstances would Twitter grant access to the account, which would prevent deletion.

The firm does not, unlike Facebook, offer a “memorialisation” option that freezes the account in place and disallows new interactions – a measure to prevent abuse.

Since inactivity is based on logging in, not posting, bot accounts – such as those which automatically tweet news or alerts – would also come under the cull if the account owners do not login before the December deadline. So too would accounts set up specifically as an archive, such as @POTUS44, a collection of all the tweets made by President Barack Obama while in office

Know more about; The universe.

Universe is the name that we use to describe the collection of all the things that exist in space. It is made of many millions of millions of stars and planet sand enormous clouds of gas separated by a gigantic empty space which is called the universe.

Astronomers can use telescopes to look at very distant galaxies. This is how they see what the universe looked like a long time ago. This is because the light from distant parts of the universe takes a very long time to reach us. From these observations, it seems the physical law sand constants of the universe have not changed.

Physicists are currently unsure if anything existed before the Big Bang. They are also unsure whether the size of the universe is infinite.

History of the universe

Many people in history had ideas to explain the universe. Most early models had the Earth at the centre of the Universe. Some ancient Greeks thought that the Universe has infinite space and has existed forever. They thought it had a set of spheres which corresponded to the fixed stars, the Sun and various planets. The spheres circled about a spherical but unmoving Earth.

Over the centuries, better observations and better ideas of gravity led to Copernicus’s Sun centred model. This was hugely controversial at the time, and was fought long and hard by authorities of the Christian church (see Giordano Bruno and Galileo).

The invention of the telescope in the Netherlands, 1608, was a milestone in astronomy. By the mid-19th century, they were good enough for other galaxies to be distinguished. The modern optical (uses visible light) telescope is still more advanced. Meanwhile, the Newtonian dynamics (equations) showed how the Solar System worked.

The improvement of telescopes led astronomers to realize that the Solar System is in a galaxy made of billions of stars, the Milky Way, and that other galaxies exist outside it, as far as we can see. Careful studies of the distribution of these galaxies and their spectral lines have led to much of modern cosmology. Discovery of the systematic red shift of galaxies led to the conclusion that the Universe is expanding

How big is the universe?

The universe is about 13.8 billion years old, so any light we see has to have been travelling for 13.8 billion years or less – we call this the observable universe. However, the distance to the edge of the observable universe is about 46 billion light years because the universe is expanding all of the time.

What is the universe made of?

Astronomers like to call all material made up of protons, neutrons and electrons “Bar tonic matter”. Until about thirty years ago, astronomers thought that the universe was composed almost entirely of this “Bar tonic matter”, ordinary atoms.

China Officially Launched Its Second But First Domestically-Built Aircraft Carrier

China New Aircraft Carrier Enters Service

On Tuesday 17th of December, 2019 China officially launched and commissioned its second aircraft carrier, but this is the first aircraft carrier built domestically, the Shandong.

China is stepping forward and making military advances as this is the vision of the Chinese President Xi Jinping to strengthen their military and building a world class navy.

Xi presented a Chinese flag and a certificate with the ship’s official name to the ship’s captain and political commissar, according to state-run news agency.

The Shandong is not the first aircraft carrier but the Liaoning which was commissioned 7 years ago, China bought the Liaoning from Ukraine in 1998.

The Shandong is way better than the Liaoning, it has one-third more capacity, offering space for 36 aircraft. That is really large but not compared to the US carriers

US carriers are larger and equipped with more diverse and capable aircraft. The US military also has decades of experience using them, including in combat.

The World Highest Paid YouTube Star Is Taking A Break From The Platform

The world’s most successful individual YouTube content creator is taking a break from he platform. He says he is “tired”pew die pie who has found massive amounts of success with his online video game commentators has been on top of the earning poll when it came to the platform.

PEWDIEPIE

However the past few years have seen him accused of racism and anti Semitism.
The 30 year old will be away from YouTube from the start of 2020.
Earlier this year, pew die pie, who currently has 102 million subscribers, was overtaken as the biggest YouTube channel in the world by Bollywood record label T-Series, which now has more than 121 million subscribers.

See The List of Smartphones That Will Stop Having Access To Whatsapp

Here Is The Full List Of Smartphones That Will Cease To Have Whatsapp


Whatsapp who has decided to stop support for millions of old smartphones, phones with older iOS and Android versions.


According to the Facebook-owned company in a notice on its system requirements page, “Because we no longer actively develop for these operating systems, some features might stop functioning at any time.”


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As such, you should be prepared to lose Whatsapp if your smartphone is running on any of these, so these are the list according to Stuff.com:

1. Android versions 2.3.7 and older iOS 8 and older

All smartphones with Android version of 2.3.7 and older iOS 8 will no longer be able to access Whatsapp.

2. All Windows OS phones

All Windows OS phones from 31 December, 2019

Windows OS phones will stop having access from January 1 2020, followed by older Android and iOS phones after February 1 2020. The FAQ also emphasised that these older version of Android and iOS operating systems “can no longer create new accounts, nor re-verify existing accounts after February 1, 2020.” This basically ends all possibility of using Whatsapp on said devices.
Specifically, these are the most prominent smartphones that will be affected:


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3. iPhone 4

The iPhone 4 can only be upgraded until iOS 7.1.2 and is not able to update to the iOS 8.

4. Google Nexus One

The Nexus One currently runs the Google Android 2.3. 6, Gingerbread, operating system and cannot be upgraded to Ice Cream Sandwich.

5. SAMSUNG GALAXY S AND GALAXY NEXUS S

While the Samsung Galaxy S is stuck at Android Gingerbread, there is a chance to save the Galaxy Nexus S if you so want to. You will need to follow these instructions to upgrade to Android Ice Cream Sandwich in order to keep using Whatsapp.

6. ALL SMARTPHONES USING WINDOWS OS

Finally, it goes without saying that all smartphones utilising the Windows OS will be affected.
If you’re using any of these older smartphones and are dependent on Whatsapp, I would suggest now is the time for a smartphone upgrade. There are plenty currently on sale for you to consider too.

Twitter Makes Some Changes For Uploaded Photos

Twitter this week announced it has implemented a new system that retains the quality of an uploaded JPEG instead of diminishing it.

Twitter engineer Nolan O’Brien announced this week that the social media platform will now preserve JPEGs at 97% quality. He attached a photo of some fall leaves as an example.

Starting today, Twitter will preserve JPEGs as they are encoded for upload on Twitter for Web. (Caveat, cannot have EXIF orientation)

As O’Brien points out, the photo of the leaves is a guetzli encoded JPEG. Guetzli, an encoder developed by Google a couple of years ago, is able to produce small files at high quality.
The new system essentially provides photographers with more control over the quality of the image that appears on Twitter. In other words, it gives them the option of posting a high-quality photo or a version of lower quality.

Some professional photographers, for example, may deliberately post a low-quality version in an effort to protect it from misuse.
O’Brien confirmed that images uploaded to the microblogging platform will continue to have their EXIF data removed. EXIF data can be read by specific software and offers information about the image, such as the camera, lens, aperture, and speed used to capture the photo, along with when and possibly where it was taken.

Again, some photographers prefer to hold on to this kind of information rather than share it.
In a later tweet, the Twitter engineer said limits will still be enforced, “so images are not unbounded in file size or resolution, but those limits are very generous so that pretty much any 8 megapixel photo will be preserved and even up to 16 megapixels can be preserved (in square aspect ratio).”

In other image-related news this week, Twitter announced it now supports Live Photos. For those not in the know, the Live Photos feature works with the iPhone 6S and later, capturing three seconds of movement that shows in the image when you press the screen. Before now, when you uploaded a Live Photo to Twitter, it would appear as a still image. But now, when you upload it as a GIF, it will play over and over.

Reason Why Phone kill People And Ways To Stop It

Have you been woken up in the middle of the night by your phone ringing? What was the feeling? Nothing? Okay, here is the real gist that will keep you alert so that you wont enter the gang of “gone so soon”, and then, naturally blame it on your innocent village people. Your phone ringing while you sleep can actually send you to hades and take the sweetness off your life whilst your life is still morning. Even though not all phone ringing at night could cause death, but there are Peculiar ones you should be afraid of.


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Have you been woken up in the middle of the night by your phone ringing? What was the feeling? Nothing? Okay, here is the real gist that will keep you alert so that you wont enter the gang of “gone so soon”, and then, naturally blame it on your innocent village people. Your phone ringing while you sleep can actually send you to hades and take the sweetness off your life whilst your life is still morning. Even though not all phone ringing at night could cause death, but there are Peculiar ones you should be afraid of.Have you stressed yourself so much in the day, and also midway into the night that your body could no longer take it anymore, and then naturally decides to rest but then midway, say 15-20 minutes into the sleep, suddenly, your phone blasts and you jerk up from sleep? What was the feeling? Ahaaaa, you now understand it. It seems that for the next 3-5 minutes that you are aloft your sorrounding.

Even though you are awake but it seems your brain is still booting, which actually it is, and there is a taste of sourness, not in your mouth, but right there inside your Brian! My dear, find yourself in this situation for consecutive multiple times in seven days, your friends shall all dress in black and shed lovely tears on your grave side.

These noise related health issues according to a new study out of Germany’s Mainz University Medical Center, an increasing amount of noise can actually throw your heart out of rhythm. called atrial fibrillation, this irregular heart beat can lead to blood clots, stroke, and even heart failure.

You wonder how people sometimes die at midnight, or suddenly get stroke? This could explain them.Your phone ringing at night might not cause your death outrightly, but it will eventually lead you to your early grave, While some people are deep sleepers, some are light sleepers, and this issue is worst for light sleepers, however, being a light sleeper does totally exonerate you from the fact that the device you have in you hand could be the agent of your death because even during sleep, your brain is still listening and your phone ringing during the time your body needs rest could trigger your body to churn out cortisol (the “stress hormone”) even if you never wake up.

Remember that “stress hormone” increases your blood pressure and blood sugar, while decreasing your body’s ability to fight off disease. Bad news for deep sleeper, worst for light sleepers.

In as much as this calls for panic, however, there are simple remedies when applied could make you live longer, and send grieve far from your household.


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Ways To Stop It

1. Switch off your phone while you sleep.

Even though this might not be easy for you especially those that need their phone to be always on, however, Life is bigger than riches. Once you drop dead, the whole world would not stop for a second to recognize your demise. It goes on, oblivious of your death. So why do not you think life first before riches.

2. Put your phone in silence while you sleep.

This could be a better remedy to option one. This will enable you return your calls. But when it becomes paramount that you must pick your calls, then responsibility demands that you do not sleep until you are done with your phones answering business. that when you leave life to pursue wealth, your enemies/neighbours would be the one spending the wealth on your behalf.

3. Keep your phone far away from you

To avoid all the risk just keep the phone far away from you, this will help a lot in preventing noise and radiations from the phone which can cause cancer and some health issues.

Top 10 World Greatest Scientist

Here are the top ten greatest scientist, they are known for their great inventions and discoveries which have changed the world.

10. Leonardo da Vinci(14/15 April 1452 – 2 May 1519)

Leonardo di ser Piero da Vinci was an Italian polymath of the Renaissance whose areas of interest included invention, drawing, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography. He has been variously called the father of palaeontology, ichnology , and architecture, and he is widely considered one of the greatest painters of all time.Leonardo is renowned primarily as a painter. The Mona Lisa is the most famous of his works and the most parodied portrait, and The Last Supper is the most reproduced religious painting of all time. His drawing of the Vitruvian Man is also regarded as a cultural icon, being reproduced on items.

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9. Michael Faraday (22 September 1791 – 25 August 1867)

Micheal Faraday was an English scientist who contributed to the study of electromagnetism and electrochemistry. His main discoveries include the principles underlying electromagnetic induction , diamagnetism and electrolysis .He was one of the most influential scientists in history, it was largely due to his efforts that electricity became practical for use in technology.

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8. Thomas Edison (February 11, 1847 – October 18, 1931)

Thomas

Edison was an American inventor and businessman, who has been described as America’s greatest inventor. He developed many devices in fields such as electric power generation , mass communication , sound recording , and motion pictures. These inventions, which include the phonograph , the motion picture camera , and the long-lasting, practical electric light bulb , had a widespread impact on the modern industrialized world .He was one of the first inventors to apply the principles of organized science and teamwork to the process of invention, working with many researchers and employees. He established the first industrial research laboratory .

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7. Louis Pasteur (December 27, 1822 – September 28, 1895)

Louis Pasteur was a French biologist , microbiologist and chemist renowned for his discoveries of the principles of vaccination, microbial fermentation and pasteurization . He is remembered for his remarkable breakthroughs in the causes and prevention of diseases, and his discoveries have saved many lives ever since. He reduced mortality from puerperal fever , and created the first vaccines for rabies and anthrax.Louis Pasteur is also popularly known as the “father of microbiology”.His discoveries saved millions of people worldwide. Even today his contributions save millions of people. Apart from his discoveries on disease prevention, he is better known for a technique of treating milk and wine known as pasteurization.

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6. Nikola Tesla (10 July 1856 – 7 January 1943))

Nikola Tesla was a Serbian-American inventor , electrical engineer , mechanical engineer , and futurist who is best known for his contributions to the design of the modern alternating current (AC) electricity supply system.Tesla conducted a range of experiments with mechanical oscillators/generators, electrical discharge tubes, and early X-ray imaging. He also built a wireless-controlled boat, one of the first ever exhibited. Tesla became well known as an inventor and would demonstrate his achievements to celebrities and wealthy patrons at his lab, and was noted for his showmanship at public lectures.

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5. Aristotle (382BC-322BC)

Aristotle was a Greek philosopher during the Classical period in Ancient Greece, the founder of the Lyceum and the Peripatetic school of philosophy and Aristotelian tradition.His writings cover many subjects – including physics, biology , zoology , metaphysics , logic, ethics, aesthetics, poetry , theatre, music, rhetoric, psychology, linguistics , economics , politics and government. He Along with his teacher Plato, he has been called the “Father of Western Philosophy” along with his teacher Plato.

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4. Marie Curie (1867-1934)

Marie Curie was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity . She was the first woman to win a Nobel Prize , the first person and only woman to win the Nobel prize twice , and the only person to win the Nobel Prize in two different scientific fields. She was part of the Curie family legacy of five Nobel Prizes.She was also the first woman to become a professor at the University of Paris , and in 1995 became the first woman to be entombed on her own merits in the Panthéon in Paris.
She is known for Known for the development of radioactivity, the discovery of Polonium and Radium, She died from Aplastic anemia from exposure to radiation.

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3.Galileo Galilei (1564-1642)

Galileo Galilei was an Italian astronomer, physicist and engineer , sometimes described as a polymath.  Galileo has been called the “father of observational astronomy “, the “father of modern physics“, the “father of the scientific method “, and the “father of modern science “.Galileo studied speed and velocity , gravity and free fall , the principle of relativity , inertia , projectile motion and also worked in applied science and technology, describing the properties of pendulums and ” hydrostatic balances”, inventing the thermoscope and various military compasses , and using the telescope for scientific observations of celestial objects.

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2. Sir Isaac Newton (1643-1727)

Sir Isaac Newton was an English mathematician, physicist , astronomer, theologian , and author (described in his own day as a ” natural philosopher “) who is widely recognised as one of the most influential scientists of all time, and a key figure in the scientific revolution .He demonstrated that the motion of objects on Earth and celestial bodies,  He also formulated an empirical law of cooling , made the first theoretical calculation of the speed of sound , introduced the notion of a Newtonian fluid and much more. He is known for
Newtonian mechanics, Universal gravitation, Calculus, Newton’s laws of motion, Optics, Binomial series Principia and Newton’s method.

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1. Albert Einstein (14 March 1879 – 18 April 1955)

Einstein was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). His work is also known for its influence on the philosophy of science. He is best known to the general public for his mass–energy equivalence formula E = mc2, which has been dubbed “the world’s most famous equation”.

5 Information You Should Never Share Online

We are in the 21st century, a digital, information and computer age.

Statistics shows that over 3 billion people are making use of the internet, and over 2 billion people are making use of the social medias.

People are now used to sharing and posting things on social medias, both reasonable and unreasonable things.

Cybercrime is increasing so as cybercriminals too, the only way we can be safe is by having knowledge of what to and not to share online.

Quickly but Carefully read this article to

1. Your Business Status

Many do this on social medias especially Facebook, it has it advantage and disadvantage to you.

Putting this online can attract thefts, criminals, hackers etc who wants to scam a person, do the first thing they will look at is the person’s business status.

So keep this information in a safe arrs

2. Your Personal Information

What’s personal is personal, don’t share your DOB, address, full name, email online.

3. Your Travel Plans

You are going out of town, you don’t have to share this unless you want to expect bad things on the way. Remember social medias are full of different kind of people.

4. Your IMEI number

Your international mobile equipment identity shouldn’t be shared online to avoid being tracked.

5. Your Phone Number

Putting this online will get you into trouble, it attracts text scams about jobs, family, your bank and will expose you to all kind of scams online.

Identify Fake Phones With These Simple Tips

Mobile Markets are filled with Fake Phones and they selling them as Original even with Branded tags beside it the replica phones are present in the market that looks similar to the original phone, to check whether your phone is original or fake there are two ways of checking it. These methods will help you a lot while buying a used cell phone.

1. First Check the following Features :

Be careful about the spellings For example, Soniericsson, Nokla, Techno and Samsvng

Warranties: Always insist on 12 months warranty certificate from the handset manufacturers; Never an oral agreement with the seller. Fake phones come with a shorter warranty periods since counterfeiters cannot guarantee it will last so long.

Check for performance of the handset: Some people carry their phones home without testing it first. Some dealers encourage this, knowing the handset is fake. As you check it out, you may notice some points of low performance such as memory which is smaller or poor quality photos.

Appearances: like dull colors , Fake logos,built quality difference in weight, screen size, location of buttons and battery, quality of printing and paint finish, added or missing functions, quality control stickers and holograms and an overall lack of quality.

2. The other method is checking Phones quality through 15 digit IMEI code:

Dial *#06#

IMEI stands for International Mobile Equipment Identity. It is a 15-digit number and may be found in the packet of the mobile phone. It may also be found by removing the back cover and it may be placed on the battery sticker.

3. Compare phones

Check and research on the phone you are about to purchase online and compare it to the one you are about to buy.

RMS Titanic: The Worst Maritime Disaster

RMS Titanic was a British passenger liner that sank in the North Atlantic Ocean in 1912 after the ship struck an iceberg during her maiden voyage from Southampton to New York City. Of the estimated 2,224 passengers and crew aboard, more than 1,500 died, making it one of modern history’s deadliest peacetime commercial marine disasters.RMS Titanic was the largest ship afloat at the time she entered service and was the second of three Olympic-class ocean liners operated by the White Star Line. She was built by the Harland and Wolff shipyard in Belfast. Thomas Andrews, chief naval architect of the shipyard at the time, died in the disaster.Titanic was under the command of Capt. Edward Smith, who also went down with the ship.The ocean liner carried some of the wealthiest people in the world, as well as hundreds of emigrants from Great Britain and Ireland, Scandinavia and elsewhere throughout Europe who were seeking a new life in the United States.The first-class accommodation was designed to be the pinnacle of comfort and luxury, with an on-board gymnasium, swimming pool, libraries, high-class restaurants and opulent cabins. A high-powered radiotelegraph transmitter was available for sending passenger “marconigrams” and for the ship’s operational use.

The Disaster

After leaving Southampton on 10 April 1912, Titanic called at Cherbourg in France and Queenstown (now Cobh) in Ireland before heading west to New York. On 14 April, four days into the crossing and about 375 miles (600 km) south of Newfoundland, she hit an iceberg at 11:40 p.m. ship’s time. The collision caused the hull plates to buckle inwards along her starboard (right) side and opened five of her sixteen watertight compartments to the sea; she could only survive four flooding.The disaster was met with worldwide shock and outrage at the huge loss of life and the regulatory and operational failures that led to it. Public inquiries in Britain and the United States led to major improvements in maritime safety.

The Wreck of Titanic

The wreck of Titanic was discovered in 1985 (more than 70 years after the disaster) during a US military mission, and it remains on the seabed. The ship was split in two and is gradually disintegrating at a depth of 12,415 feet (3,784 m). Thousands of artifacts have been recovered and displayed at museums around the world. Titanic has become one of the most famous ships in history; her memory is kept alive by numerous works of popular culture, including books, folk songs, films, exhibits, and memorials. Titanic is the second largest ocean liner wreck in the world, only beaten by her sister HMHS Britannic, the largest ever sunk, although she holds the record as the largest sunk while actually in service as a liner due to Britannic being used as a hospital ship at the time of her sinking. The final survivor of the sinking, Millvina Dean, aged two months at the time, died in 2009 at the age of 97.

Fact about the Titanic

The total capacity for the Titanic was 3547 people. The 18 lifeboats on board had capacity for 65 people each – which was not enough. There wasn’t enough seating space on the lifeboats for even HALF of the people on the ship. Bodies were found floating vertically and looked as if they were asleep. Each corpse was checked for identification. All first class bodies were taken back to shore. The other 116 bodies were attached to weights and buried at sea.Most people died of overexposure to the cold rather than from drowning. Only around 300 bodies were recovered.

10 Things That Can Make Your Smartphone Battery Last Longer

One problem every smartphone user can relate to is the problem of the battery life of their phones. Be it an iPhone or Android, no smartphone is immune to low battery problems.

A smartphone battery low |Credit: mikroman6 | Getty Images

If you are keen about making your smartphone battery last longer, here are nine things that can help.

1. Turn on your data saver
Turning on your data saver cannot just help background apps from wasting your data but can also save your smartphone battery by closing apps that are closed by you.

2. Use a Black Wallpaper
If your phone uses an AMOLED display which is popular on Android devices than on the iPhone, each pixel on the screen takes a little bit of power to “light up.”

However, the more black pixels you can get on your screen, the better for your battery life. Set a dark wallpaper as your default, and try using dark themes on apps when possible.

3. Use Airplane Mode
Your iPhone or Android device will always try to connect to a cellular network when possible, and this can put a strain on your battery if you’re in an area with limited (or no) service.

Switching on Airplane Mode in Settings will stop this from happening. You however should take note of the fact that you won’t be able to make or receive calls while you activate this mode.

4. Switch Off Your Location Services
A lot of apps on iPhone and Android use “location services”. This can reduce battery life, so it is essential you take note of it. You can tell if an app is using location services by looking out for a small arrow on the top of your menu bar.

5. Be On The Lookout For Push Notifications
Each time your phone receives a notification from the network, it lights up and, depending on your settings, vibrates or makes a noise, too. This settings run down your battery, especially if you are the type that receives a lot of updates.

6. Download The Battery Guru App
If you’re on an Android device, download the Snapdragon BatteryGuru. This app is created by Qualcomm, the same company that manufactures phone processors. The app learns your usage habits and automatically adjusts features on your phone to optimize battery life.

While the app is not available for iPhone users, there are several other apps that help you avoid wasting power.

7. Clear Out Apps
Even if you’re not using an app, it can run in the background and sap battery life from your smartphone. Android devices allow you to “multitask” with apps running behind the scenes. It is best to force stop all the apps you are not using if you intend to conserve the battery of your phone.

8. Keep Your Phone Cool
If your phone’s lithium-ion battery gets too hot, it’ll discharge its energy faster and could even degrade the maximum life of the battery over time. Don’t carry it in your pocket if you can avoid it (especially if your pants are tight), and never leave your device sitting in direct sunlight or in a hot car.

9. Lower Your Screen Brightness
The brighter your screen, the more battery it’s eating. Lowering your screen brightness is easy as all you need to do is go to your settings and turn down the lights to keep your phone running longer.

10. Turn Wi-Fi off
Another simple-but-forgettable tip: If you’re not using your smartphone to connect to wireless Internet, switch the wi-fi settings to “off.” This will stop your phone from looking for networks, thereby saving resources

Google Offers $1.5m ‘Prize’ For Detecting Any Pixel Phone Bugs

Google is raising its reward to hackers who can figure out security flaws in some of its Android smartphones (Titan M chip) from $200,000 to $1.5m.

Hackers or security researchers who can detect or find bugs in the “Titan M security chip” (The Titan M security chip in Pixel smartphones is designed to protect the integrity of their operating system and to store biometric data, which is used to unlock the phone) will be get the new top prize on meeting some specific criteria.

Google reported that it had paid out over $4m to security researchers since 2015.

Companies like Apple, Buzzfeed, Facebook, BBC and Samsung, also offer rewards for reporting security flaws so they can be fixed.

These companies run so-called bug bounty schemes to encourage people to report flaws, so that they can be fixed, rather than selling the exploits to criminals. Apple also willing to pay $1m to anyone who can hack or find bugs in it security.

Heliogen Achieves Success In Concentrated Solar Energy Backed By Bill Gates

Heliogen, “a company trying to replace fossil fuels and reduce the emission of CO2″ claimed it has achieved a breakthrough in concentrated solar energy.

Heliogen

Heliogen’s solar technology can now exceed temperatures greater than 1,000 degrees Celsius by array of mirrors that directs light toward a single point on a tower.

This achievement could replace the fossil fuels used in heavy-emissions processes such as making cement, steel, glass and petrochemicals.

The current world’s richest person, Bill Gates is counted as one of its initial investors in this breakthrough technology.

This company is pioneer in creating such a high temperatures using concentrated solar power – others have tried but achieved temperatures of only up to 565 degrees Celsius, Heliogen said.

How to buy a product through online shopping

Online shopping is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser.

Consumers find a product of interest by visiting the website of the retailer directly or by searching among alternative vendors using a shopping search engine, which displays the same product’s availability and pricing at different e-retailers. As of 2016, customers can shop online using a range of different computers and devices, including desktop computers, laptops, tablet computers and smartphones.

An online shop evokes the physical analogy of buying products or services at a regular “bricks-and-mortar” retailer or shopping center; the process is called business-to-consumer (B2C) online shopping.

When an online store is set up to enable businesses to buy from another businesses, the process is called business-to-business (B2B) online shopping. A typical online store enables the customer to browse the firm’s range of products and services, view photos or images of the products, along with information about the product specifications, features and prices.

Online stores usually enable shoppers to use “search” features to find specific models, brands or items.

Online customers must have access to the Internet and a valid method of payment in order to complete a transaction, such as a credit card, an Interac-enabled debit card, or a service such as PayPal. For physical products (e.g., paperback books or clothes), the e-tailer ships the products to the customer; for digital products, such as digital audio files of songs or software, the e-tailer usually sends the file to the customer over the Internet.

The largest of these online retailing corporations are Alibaba, Amazon.com, and eBay.

Deep Explaination Of AM and PM

Some countries, including the US, Canada, and Australia, use the 12-hour clock format including am and pm. What do these abbreviations mean? Is midnight am or pm?

12-hour clock at noon: 12 am or 12 pm?

Two 12-Hour Periods
The 12-hour system divides the 24 hours of a day into two periods lasting 12 hours each. The first 12-hour period is designated as am. It runs from midnight to noon. The second period, marked pm, covers the 12 hours from noon to midnight.
The abbreviations am and pm derive from Latin:
AM = Ante meridiem: Before noon
PM = Post meridiem: After noon

Using numbers from 1 to 12, followed by am or pm, the 12-hour clock system identifies all 24 hours of the day. For example, 5 am is early in the morning, and 5 pm is late in the afternoon; 1 am is one hour after midnight, while 11 pm is one hour before midnight.
Ante meridiem is commonly denoted as AM, am, a.m., or A.M.; post meridiem is usually abbreviated PM, pm, p.m., or P.M. Like many other sources, timeanddate.com uses am and pm, but the other variants are equally correct and widely used.

Midnight and Noon: AM or PM?
The main weakness of the 12-hour system is a widespread confusion about which abbreviation should be used for noon and midnight: neither moment can logically be identified as before noon (am) or after noon (pm). For example, the moment of midnight occurs precisely 12 hours after noon on the previous day and 12 hours before noon on the following day.

However, most digital clocks and most sources, including timeanddate.com, designate midnight as 12 am and noon as 12 pm. Although the precise moment of noon falls in neither category, the hour succeeding it, from 12:00:01 to 12:59:59, is clearly after noon.
To avoid any confusion when referring to the precise moment of noon or midnight, we recommend using the designations 12 noon and 12 midnight instead.

Midnight Confusion
Another source of confusion is the lack of a date designator in the 12-hour system, making it impossible to logically identify a correct moment in time when only a date and 12:00 am (midnight) is provided.
Imagine being asked to pick up a friend at the airport at 12:00 am on April 13. Would you go there at midnight between April 12 and April 13? Or 24 hours later?
One way to overcome this problem is to sacrifice accuracy for clarity. Your friend could ask you to be at the airport at 12:01 am on April 13 or, if the following midnight is meant, at 11:59 pm on April 13. Alternatively, the 24-hour format could be used. Here, 0:00 refers to midnight at the beginning of the day while 24:00 is midnight at the end of the day.

Time Formats

12-hour 24-hour
12:00 (midnight) 0:00 (beginning of the day)
12:01 am 0:01
1:00 am 1:00
2:00 am 2:00
3:00 am 3:00
4:00 am 4:00
5:00 am 5:00
6:00 am 6:00
7:00 am 7:00
8:00 am 8:00
9:00 am 9:00
10:00 am 10:00
11:00 am 11:00
12:00 (noon) 12:00
12:01 pm 12:01
1:00 pm 13:00
2:00 pm 14:00
3:00 pm 15:00
4:00 pm 16:00
5:00 pm 17:00
6:00 pm 18:00
7:00 pm 19:00
8:00 pm 20:00
9:00 pm 21:00
10:00 pm 22:00
11:00 pm 23:00 12:00 (midnight) 24:00 (end of the day)

Converting 12-Hour to 24-Hour Format

A 24-hour clock, sometimes referred to as military time, states the time according to the number of hours that have passed since midnight. Starting at midnight, hours are numbered from 0 to 24, removing the need for designations like am and pm. For example, at 23:00, 23 hours have passed since the beginning of the current day.

To convert am or pm time to the 24-hour format, use these rules:
From midnight to 12:59 am, subtract 12 hours.

12:49 am = 0:49 (12:49 – 12)
From 1 am to noon, do nothing.
11:49 am = 11:49
From 12:01 pm to 12:59 pm, do nothing.
12:49 pm = 12:49
From 1:00 pm to midnight, add 12 hours.
1:49 pm = 13:49 (1:49 + 12)

Here’s how to convert time on a 24-hour clock to the 12-hour system:

From 0:00 (midnight) to 0:59, add 12 hours and use am.
0:49 = 12:49 am (0:49 + 12)
From 1:00 to 11:59, just add am after the time.
11:49 = 11:49 am
From 12:00 to 12:59, just add pm after the time.
12:49 = 12:49 pm
From 13:00 to 0:00, subtract 12 hours and use pm.
13:49 = 1:49 pm (13:49 – 12)

Where Is the 12-Hour Format Used?

Most countries around the world today use the 24-hour system. However, the 12-hour format, including am and pm, is officially used in a number of countries, including the United States, Canada (except Québec), Australia, New Zealand, and the Philippines.

Why Does the Day Have 24 Hours?

The Egyptians are thought to be responsible for dividing the day into 24 equal parts. One account suggests that this custom evolved because the Egyptians commonly used the base 12, counting the 3 joints in their fingers.

Top 10 Richest Tech Geniuses In The World(2019)

Top 10 Richest Tech Geniuses In The World.

With different inventions or being a pioneer in an important aspect of tech, these billionaires have made it to the top 10 richest for years.

They’re so successful that they don’t know what to do with their wealth or how to share it up.

Here are the top 10 richest tech geniuses in 2019:

Number 10

Azim Premji (estimated net worth $18.8 billion)

Premji is a tycoon of the Indian IT industry and Chairman of Wipro.

Number 9

Paul Allen (estimated net worth $21billion)

Paul Allen was an American business magnate, investor, researcher, humanitarian, and philanthropist.

Number 8

Michael Dell (estimated net worth: $31.0 billion)

Michael Saul Dell is an American billionaire businessman and philanthropist.

He is the founder and CEO of Dell Technologies, one of the world’s largest technology infrastructure companies.

Number 7

Jack Ma (estimated net worth: $39 billion)

In 1999, Ma and a group of friends launched Alibaba Group Holding Limited (BABA) to address the lack of e-commerce presence in China. He is the richest entrepreneur in China.

Numbers 6 and 5

Sergey Brin (estimated net worth $55 billion) and Larry Page ($55 billion)

Sergey Brin and Larry Page are co-founders of Google Inc.

Number 4

Larry Ellison estimated net worth $61.7 billion)

Lawrence Ellison is an American businessman and philanthropist who is a co-founder and the executive chairman and chief technology officer (CTO) of Oracle Corporation.

Number 3

Mark Zuckerberg (estimated net worth: $70.3 billion)

Mark Zuckerberg is an American technology entrepreneur and philanthropist.

Zuckerberg is known for co-founding and leading Facebook as its chairman and chief executive officer.

Number 2

Bill Gates (estimated net worth $105.7 billion)

Bill Gates is an American business magnate, investor, author, philanthropist, and humanitarian.

He is best known as the pioneer of the microcomputer revolution of the 1970s and 1980s, and the principal founder of Microsoft Corporation.

Number 1

Jeff Bezos (estimated net worth: $109.9 billion)

Jeffrey Bezos is an American businessman, investor, and philanthropist.

He is the founder, CEO, and president of Amazon.com, Inc.

He is also the richest in the world.

Know More About Eclipse

An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three celestial objects is known as a syzygy.

What happens when there is an eclipse?

A solar eclipse happens when the moon moves in front of the Sun as seen from a location on Earth. During a solar eclipse, it gets dimer and dimmer outside as more and more of the Sun is covered by the Moon. During a total eclipse, the entire Sun is covered for a few minutes and it becomes very dark outside.

What are the 4 types of eclipses?

The Different Types of Eclipses

A solar eclipse is when the sun is covered by the Moon. There are four types of solar eclipses.

  • Partial eclipse. In a partial eclipse, the Moon crosses the path of the sun, but does not completely block it out.
  • Annular eclipse.
  • Total Eclipse.
  • Hybrid Eclipse.

What is the meaning of eclipse of the sun?

There are four types of solar eclipses: … An annular eclipse occurs when the Sun and Moon are exactly in line with the Earth, but the apparent size of the Moon is smaller than that of the Sun. Hence the Sun appears as a very bright ring, or annulus, surrounding the dark disk of the Moon.

What are the effects of eclipse?

Many people believe that the rare occurrence of a solar eclipse has psychological effects on humans. There are reports of increased agitation, unusual dreams, sudden bursts of creativity, and even relationship difficulties during a solar eclipse.

How long will the eclipse last?

During the brief period of totality, when the sun is completely covered, the beautiful corona — the tenuous outer atmosphere of the sun — is revealed. Totality may last as long as 7 minutes 31 seconds, though most total eclipses are usually much shorter.

An eclipse cycle

An eclipse cycle takes place when eclipses in a series are separated by a certain interval of time. This happens when the orbital motions of the bodies form repeating harmonic patterns. A particular instance is the saros, which results in a repetition of a solar or lunar eclipse every 6,585.3 days, or a little over 18 years. Because this is not a whole number of days, successive eclipses will be visible from different parts of the world.

READ ALSO: Know more about the universe

Ernest Rutherford

Ernest Rutherford, 1st Baron Rutherford of Nelson, (30 August 1871 – 19 October 1937), was a New Zealand-born British physicist who came to be known as the father of nuclear physics. Encyclopædia Britannica considers him to be the greatest experimentalist since Michael Faraday .

Known for:

  • Discovery of alpha and beta radioactivity
  • Discover of atomic nucleus (Rutherford model)
  • Rutherford scattering
  • Rutherford backscattering spectroscopy
  • Discovery of proton
  • Rutherford (unit)
  • Coining the term ‘artificial disintegration.

Awards

  • Rumford Medal (1904)
  • Nobel Prize in Chemistry (1908)
  • Barnard Medal (1910)
  • Elliott Cresson Medal (1910)
  • Matteucci Medal (1913)
  • Copley Medal (1922)
  • Franklin Medal (1924)
  • Albert Medal (1928)
  • Faraday Medal (1930)
  • Wilhelm Exner Medal (1936)
  • Faraday Lectureship Prize (1936)

In early work, Rutherford discovered the concept of radioactive half-life, the radioactive element radon, and differentiated and named alpha and beta radiation.

This work was performed at McGill University in Canada. It is the basis for the Nobel Prize in Chemistry he was awarded in 1908 “for his investigations into the disintegration of the elements, and the chemistry of radioactive substances”, for which he was the first Canadian and Oceanian Nobel laureate.

Rutherford moved in 1907 to the Victoria University of Manchester (today University of Manchester) in the UK, where he and Thomas Royds proved that alpha radiation is helium nuclei. Rutherford performed his most famous work after he became a Nobel laureate.

In 1911, although he could not prove that it was positive or negative, he theorized that atoms have their charge concentrated in a very small nucleus, and thereby pioneered the Rutherford model of the atom, through his discovery and interpretation of Rutherford scattering by the gold foil experiment of Hans Geiger and Ernest Marsden.

He conducted research that led to the first “splitting” of the atom in 1917 in a nuclear reaction between nitrogen and alpha particles, in which he also discovered (and named) the proton.

Rutherford became Director of the Cavendish Laboratory at the University of Cambridge in 1919. Under his leadership the neutron was discovered by James Chadwick in 1932 and in the same year the first experiment to split the nucleus in a fully controlled manner was performed by students working under his direction, John Cockcroft and Ernest Walton. After his death in 1937, he was honoured by being interred with the greatest scientists of the United Kingdom, near Sir Isaac Newton’s tomb in Westminster Abbey.

The chemical element rutherfordium (element 104) was named after him in 1997

BIOGRAPHY

Ernest Rutherford was the son of James Rutherford, a farmer, and his wife Martha Thompson, originally from Hornchurch, Essex, England.

James had emigrated to New Zealand from Perth, Scotland, “to raise a little flax and a lot of children”. Ernest was born at Brightwater, near Nelson, New Zealand. His first name was mistakenly spelled ‘Earnest’ when his birth was registered. Rutherford’s mother Martha Thompson was a schoolteacher.

He studied at Havelock School and then Nelson College and won a scholarship to study at Canterbury College, University of New Zealand, where he participated in the debating society and played rugby.

After gaining his BA, MA and BSc, and doing two years of research during which he invented a new form of radio receiver, in 1895 Rutherford was awarded an 1851 Research Fellowship from the Royal Commission for the Exhibition of 1851, to travel to England for postgraduate study at the Cavendish Laboratory, University of Cambridge.

He was among the first of the ‘aliens’ (those without a Cambridge degree) allowed to do research at the university, under the inspiring leadership of J. J. Thomson,[citation needed] which aroused jealousies from the more conservative members of the Cavendish fraternity. With Thomson’s encouragement, he managed to detect radio waves at half a mile and briefly held the world record for the distance over which electromagnetic waves could be detected, though when he presented his results at the British Association meeting in 1896, he discovered he had been outdone by another lecturer, by the name of Marconi.
In 1898, Thomson recommended Rutherford for a position at McGill University in Montreal, Canada. He was to replace Hugh Longbourne Callendar who held the chair of Macdonald Professor of physics and was coming to Cambridge.

Rutherford was accepted, which meant that in 1900 he could marry Mary Georgina Newton (1876–1954) to whom he had become engaged before leaving New Zealand; they married at St Paul’s Anglican Church, Papanui in Christchurch, they had one daughter, Eileen Mary (1901–1930), who married Ralph Fowler. In 1901, he gained a DSc from the University of New Zealand. In 1907, Rutherford returned to Britain to take the chair of physics at the Victoria University of Manchester.

He was knighted in 1914. During World War I, he worked on a top secret project to solve the practical problems of submarine detection by sonar. In 1916, he was awarded the Hector Memorial Medal.

In 1919, he returned to the Cavendish succeeding J. J. Thomson as the Cavendish professor and Director. Under him, Nobel Prizes were awarded to James Chadwick for discovering the neutron (in 1932), John Cockcroft and Ernest Walton for an experiment which was to be known as splitting the atom using a particle accelerator, and Edward Appleton for demonstrating the existence of the ionosphere.

In 1925, Rutherford pushed calls to the Government of New Zealand to support education and research, which led to the formation of the Department of Scientific and Industrial Research (DSIR) in the following year. Between 1925 and 1930, he served as President of the Royal Society, and later as president of the Academic Assistance Council which helped almost 1,000 university refugees from Germany.

He was appointed to the Order of Merit in the 1925 New Year Honours and raised to the peerage as Baron Rutherford of Nelson, of Cambridge in the County of Cambridge in 1931, a title that became extinct upon his unexpected death in 1937. In 1933, Rutherford was one of the two inaugural recipients of the T. K. Sidey Medal, set up by the Royal Society of New Zealand as an award for outstanding scientific research.

For some time before his death, Rutherford had a small hernia, which he had neglected to have fixed, and it became strangulated, causing him to be violently ill. Despite an emergency operation in London, he died four days afterwards of what physicians termed “intestinal paralysis”, at Cambridge. After cremation at Golders Green Crematorium,he was given the high honour of burial in Westminster Abbey, near Isaac Newton and other illustrious British scientists.

At Cambridge, Rutherford started to work with J. J. Thomson on the conductive effects of X-rays on gases, work which led to the discovery of the electron which Thomson presented to the world in 1897.

Hearing of Becquerel’s experience with uranium, Rutherford started to explore its radioactivity, discovering two types that differed from X-rays in their penetrating power. Continuing his research in Canada, he coined the terms alpha ray and beta ray in 1899 to describe the two distinct types of radiation. He then discovered that thorium gave off a gas which produced an emanation which was itself radioactive and would coat other substances.

He found that a sample of this radioactive material of any size invariably took the same amount of time for half the sample to decay – its “half-life” (11½ minutes in this case).

From 1900 to 1903, he was joined at McGill by the young chemist Frederick Soddy (Nobel Prize in Chemistry, 1921) for whom he set the problem of identifying the thorium emanations. Once he had eliminated all the normal chemical reactions, Soddy suggested that it must be one of the inert gases, which they named thoron (later found to be an isotope of radon). They also found another type of thorium they called Thorium X, and kept on finding traces of helium.

They also worked with samples of “Uranium X” from William Crookes and radium from Marie Curie.

In 1903, they published their “Law of Radioactive Change,” to account for all their experiments. Until then, atoms were assumed to be the indestructible basis of all matter and although Curie had suggested that radioactivity was an atomic phenomenon, the idea of the atoms of radioactive substances breaking up was a radically new idea.

Rutherford and Soddy demonstrated that radioactivity involved the spontaneous disintegration of atoms into other, as yet, unidentified matter.

The Nobel Prize in Chemistry 1908 was awarded to Ernest Rutherford “for his investigations into the disintegration of the elements, and the chemistry of radioactive substances”.

In 1903, Rutherford considered a type of radiation discovered (but not named) by French chemist Paul Villard in 1900, as an emission from radium, and realised that this observation must represent something different from his own alpha and beta rays, due to its very much greater penetrating power. Rutherford therefore gave this third type of radiation the name of gamma ray. All three of Rutherford’s terms are in standard use today – other types of radioactive decay have since been discovered, but Rutherford’s three types are among the most common.

In Manchester, he continued to work with alpha radiation. In conjunction with Hans Geiger, he developed zinc sulfide scintillation screens and ionisation chambers to count alphas. By dividing the total charge they produced by the number counted, Rutherford decided that the charge on the alpha was two.

In late 1907, Ernest Rutherford and Thomas Royds allowed alphas to penetrate a very thin window into an evacuated tube. As they sparked the tube into discharge, the spectrum obtained from it changed, as the alphas accumulated in the tube. Eventually, the clear spectrum of helium gas appeared, proving that alphas were at least ionised helium atoms, and probably helium nuclei.

At Cambridge, Rutherford started to work with J. J. Thomson on the conductive effects of X-rays on gases, work which led to the discovery of the electron which Thomson presented to the world in 1897.

Hearing of Becquerel’s experience with uranium, Rutherford started to explore its radioactivity, discovering two types that differed from X-rays in their penetrating power. Continuing his research in Canada, he coined the terms alpha ray and beta ray in 1899 to describe the two distinct types of radiation. He then discovered that thorium gave off a gas which produced an emanation which was itself radioactive and would coat other substances.

He found that a sample of this radioactive material of any size invariably took the same amount of time for half the sample to decay – its “half-life” (11½ minutes in this case).

From 1900 to 1903, he was joined at McGill by the young chemist Frederick Soddy (Nobel Prize in Chemistry, 1921) for whom he set the problem of identifying the thorium emanations. Once he had eliminated all the normal chemical reactions, Soddy suggested that it must be one of the inert gases, which they named thoron (later found to be an isotope of radon). They also found another type of thorium they called Thorium X, and kept on finding traces of helium.

They also worked with samples of “Uranium X” from William Crookes and radium from Marie Curie.

In 1903, they published their “Law of Radioactive Change,” to account for all their experiments. Until then, atoms were assumed to be the indestructible basis of all matter and although Curie had suggested that radioactivity was an atomic phenomenon, the idea of the atoms of radioactive substances breaking up was a radically new idea.

Rutherford and Soddy demonstrated that radioactivity involved the spontaneous disintegration of atoms into other, as yet, unidentified matter. The Nobel Prize in Chemistry 1908 was awarded to Ernest Rutherford “for his investigations into the disintegration of the elements, and the chemistry of radioactive substances”.

In 1903, Rutherford considered a type of radiation discovered (but not named) by French chemist Paul Villard in 1900, as an emission from radium, and realised that this observation must represent something different from his own alpha and beta rays, due to its very much greater penetrating power. Rutherford therefore gave this third type of radiation the name of gamma ray. All three of Rutherford’s terms are in standard use today – other types of radioactive decay have since been discovered, but Rutherford’s three types are among the most common.

In Manchester, he continued to work with alpha radiation. In conjunction with Hans Geiger, he developed zinc sulfide scintillation screens and ionisation chambers to count alphas. By dividing the total charge they produced by the number counted, Rutherford decided that the charge on the alpha was two.

In late 1907, Ernest Rutherford and Thomas Royds allowed alphas to penetrate a very thin window into an evacuated tube. As they sparked the tube into discharge, the spectrum obtained from it changed, as the alphas accumulated in the tube. Eventually, the clear spectrum of helium gas appeared, proving that alphas were at least ionised helium atoms, and probably helium nuclei.

Rutherford performed his most famous work after receiving the Nobel prize in 1908. Along with Hans Geiger and Ernest Marsden in 1909, he carried out the Geiger–Marsden experiment, which demonstrated the nuclear nature of atoms by deflecting alpha particles passing through a thin gold foil. Rutherford was inspired to ask Geiger and Marsden in this experiment to look for alpha particles with very high deflection angles, of a type not expected from any theory of matter at that time.

Such deflections, though rare, were found, and proved to be a smooth but high-order function of the deflection angle. It was Rutherford’s interpretation of this data that led him to formulate the Rutherford model of the atom in 1911 – that a very small charged nucleus, containing much of the atom’s mass, was orbited by low-mass electrons.

In 1919–1920, Rutherford found that nitrogen and other light elements ejected a proton (Rutherford said “a hydrogen atom” rather than “a proton”) when hit with α (alpha) particles. This result showed Rutherford that hydrogen nuclei were a part of nitrogen nuclei (and by inference, probably other nuclei as well).

Such a construction had been suspected for many years on the basis of atomic weights which were whole numbers of that of hydrogen; see Prout’s hypothesis. Hydrogen was known to be the lightest element, and its nuclei presumably the lightest nuclei. Now, because of all these considerations, Rutherford decided that a hydrogen nucleus was possibly a fundamental building block of all nuclei, and also possibly a new fundamental particle as well, since nothing was known from the nucleus that was lighter. Thus, confirming and extending the work of Wilhelm Wien who in 1898 discovered the proton in streams of ionized gas, Rutherford postulated the hydrogen nucleus to be a new particle in 1920, which he dubbed the proton.
In 1921, while working with Niels Bohr (who postulated that electrons moved in specific orbits), Rutherford theorized about the existence of neutrons, (which he had christened in his 1920 Bakerian Lecture), which could somehow compensate for the repelling effect of the positive charges of protons by causing an attractive nuclear force and thus keep the nuclei from flying apart from the repulsion between protons.

The only alternative to neutrons was the existence of “nuclear electrons” which would counteract some of the proton charges in the nucleus, since by then it was known that nuclei had about twice the mass that could be accounted for if they were simply assembled from hydrogen nuclei (protons).

But how these nuclear electrons could be trapped in the nucleus, was a mystery.

Rutherford’s theory of neutrons was proved in 1932 by his associate James Chadwick, who recognized neutrons immediately when they were produced by other scientists and later himself, in bombarding beryllium with alpha particles.

In 1935, Chadwick was awarded the Nobel Prize in Physics for this discovery.

Albert Einstein

Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).

His work is also known for its influence on the philosophy of science. He is best known to the general public for his mass–energy equivalence formula E = mc2, which has been dubbed “the world’s most famous equation”.

He received the 1921 Nobel Prize in Physics “for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect”, a pivotal step in the development of quantum theory.

Near the beginning of his career, Einstein thought that Newtonian mechanics was no longer enough to reconcile the laws of classical mechanics with the laws of the electromagnetic field. This led him to develop his special theory of relativity during his time at the Swiss Patent Office in Bern (1902–1909). However, he realized that the principle of relativity could also be extended to gravitational fields, and he published a paper on general relativity in 1916 with his theory of gravitation. He continued to deal with problems of statistical mechanics and quantum theory, which led to his explanations of particle theory and the motion of molecules. He also investigated the thermal properties of light which laid the foundation of the photon theory of light. In 1917, he applied the general theory of relativity to model the structure of the universe.[11][12]

Except for one year in Prague, Einstein lived in Switzerland between 1895 and 1914, during which time he renounced his German citizenship in 1896, then received his academic diploma from the Swiss federal polytechnic school (later the Eidgenössische Technische Hochschule, ETH) in Zürich in 1900. After being stateless for more than five years, he acquired Swiss citizenship in 1901, which he kept for the rest of his life. In 1905, he was awarded a PhD by the University of Zurich. The same year, he published four groundbreaking papers during his renowned annus mirabilis (miracle year) which brought him to the notice of the academic world at the age of 26. Einstein taught theoretical physics at Zurich between 1912 and 1914 before he left for Berlin, where he was elected to the Prussian Academy of Sciences.

In 1933, while Einstein was visiting the United States, Adolf Hitler came to power. Because of his Jewish background, Einstein did not return to Germany.

He settled in the United States and became an American citizen in 1940. On the eve of World War II, he endorsed a letter to President Franklin D. Roosevelt alerting him to the potential development of “extremely powerful bombs of a new type” and recommending that the US begin similar research.

This eventually led to the Manhattan Project. Einstein supported the Allies, but he generally denounced the idea of using nuclear fission as a weapon.

He signed the Russell–Einstein Manifesto with British philosopher Bertrand Russell, which highlighted the danger of nuclear weapons. He was affiliated with the Institute for Advanced Study in Princeton, New Jersey, until his death in 1955.

Known for

General relativity
Special relativity
Photoelectric effect
E=mc2 (Mass–energy equivalence)
E=hf (Planck–Einstein relation)
Theory of Brownian motion
Einstein field equations
Bose–Einstein statistics
Bose–Einstein condensate
Gravitational wave
Cosmological constant
Unified field theory
EPR paradox
Ensemble interpretation

Know more about- STD

Sexual transmitted diseases (STD) are infection that pass from one person to another through sexual contact.

They are also known as sexually transmitted infections (STIs) or venereal diseases (VD).

Some STDs can spread through the use of unsterilized drug needles, from mother to infant during childbirth or breast-feeding, and blood transfusions.

The genital areas are generally moist and warm environments, ideal for the growth of yeasts, viruses, and bacteria.

People can transmit microorganisms that inhabit the skin or mucous membranes of the genitals. Infectious organisms can also move between people in semen, vaginal secretions, or blood during sexual intercourse.

Individuals pass on STDs more easily when they are not using contraceptive devices, such as condoms, dams, and sanitizing sex toys.Some infections can transmit through sexual contact but are not classed as STDs. For example, meningitis can be passed on during sexual contact, but people can acquire a meningitis infection for other reasons. It is therefore not classed as an STD.

The World Health Organization (WHO) estimates that there are more than 1 million new STDs acquired each day globally.People between the ages of 15 and 24 years acquire half of all new STDs, and 1 in 4 sexually active adolescent females has an STD. However, STD rates among seniors are increasing.The following sections explain the most common STD’s.

CHLAMYDIA

Chlamydia is an STD caused by Chlamydia trachomatis (C. trachomatis). This bacterium only infects humans. Chlamydia is the most common infectious cause of genital and eye diseases globally. It is also the most common bacterial STD.According to the Centers for Disease Control and Prevention (CDC), in 2015, nearly 3 percent of girls aged 15 to 19 years had chlamydia.Women with chlamydia do not usually show symptoms. Any symptoms are usually non-specific and may include: bladder infection, A change in vaginal discharge, Mild lower abdominal pain If a person does not receive treatment for chlamydia, it may lead to the following symptoms: pelvic pain, painful sexual intercourse, either intermittently or every time Bleeding between periods

HEPATITIS B
The hepatitis B virus (HBV) causes this STD.It is transmitted through contact with infected semen, blood, and other bodily fluids.HBV is passed on in the following ways:unprotected sexusing an unsterilized syringebeing accidentally pricked by a sharp objectdrinking infected breast milkbeing bitten by a person with hepatitis BThe liver swells, and an individual can experience serious liver damage as a result of HBV.This can eventually lead to cancer, and the disease can sometimes become chronic. Blood donation centers always check to make sure that any donors do not have hepatitis B.

Trichomoniasis

Trichomoniasis is a common STD that can affect both sexes. However, women are more likely to experience symptoms. The infection is caused by a single-celled protozoan parasite, Trichomonas vaginalis.For women, the vagina is the most common site of infection, while for men it is the urethra. Transmission may occur either by sexual intercourse or vulva-to-vulva contact.While women may acquire the infection from either male or female sexual partners, men nearly always become infected from having sex with women.

Symptoms of trichomoniasis include:

vaginal odor, vaginal discharge pain or discomfort during sexual intercourse, pain when urinatingA woman with trichomoniasis is more likely to acquire HIV once exposed to the virus. A woman with trichomoniasis and HIV is also more likely to transmit HIV virus onto other sexual partners.

Facts about std

The term sexually transmitted disease (STD) is used to refer to a condition passed from one person to another through sexual contact. You can contract an STD by having unprotected vaginal, anal, or oral sex with someone who has the STD.

An STD may also be called a sexually transmitted infection (STI) or venereal disease (VD).

That doesn’t mean sex is the only way STDs are transmitted. Depending on the specific STD, infections may also be transmitted through sharing needles and breastfeeding.

Symptoms of STDs in men

It’s possible to contract an STD without developing symptoms. But some STDs cause obvious symptoms. In men, common symptoms include: pain or discomfort during sex or urination, sores, bumps, or rashes on or around the penis, testicles, anus, buttocks, thighs, or mouth, unusual discharge or bleeding from the penis, painful or swollen testicles. Specific symptoms can vary, depending on the STD. Learn more about the symptoms of STDs in men.

Symptoms of STDs in women

In many cases, STDs don’t cause noticeable symptoms. When they do, common STD symptoms in women include: pain or discomfort during sex or urination, sores, bumps, or rashes on or around the vagina, anus, buttocks, thighs, or mouth, unusual discharge or bleeding from the vagina itchiness in or around the vagina.The specific symptoms can vary from one STD to another. Here’s more about the symptoms of STDs in women.

Curable STDs

Many STDs are curable. For example, the following STDs can be cured with antibiotics or other treatments: chlamydia, syphilis gonorrhea, crabs trichomoniasis Others can’t be cured. For example, the following STDs are currently incurable: HPV, HIV, herpes. Even if an STD can’t be cured, however, it can still be managed. It’s still important to get an early diagnosis. Treatment options are often available to help alleviate symptoms and lower your chances of transmitting the STD to someone else. Take a moment to learn more about curable and incurable STDs.

Treatment of STDs

The recommended treatment for STDs varies, depending on what STD you have. It’s very important that you and your sexual partner be successfully treated for STDs before resuming sexual activity. Otherwise, you can pass an infection back and forth between you.

STD Prevention

Avoiding sexual contact is the only foolproof way to avoid STDs. But if you do have vaginal, anal, or oral sex, there are ways to make it safer.When used properly, condomsprovide effective protection against many STDs.For optimal protection, it’s important to use condoms during vaginal, anal, and oral sex.Dental dams can also provide protection during oral sex.Condoms are generally effective at preventing STDs that spread through fluids, such as semen or blood.But they can’t fully protect against STDs that spread from skin to skin. If your condom doesn’t cover the infected area of skin, you can still contract an STD or pass it to your partner.Condoms can help protect against not only STDs, but also unwanted pregnancy.In contrast, many other types of birth control lower the risk of unwanted pregnancy but not STDs.For example, the following forms of birth control don’t protect against STDs:birth control pillsbirth control shotbirth control implantsintrauterine devices (IUDs)Regular STD screening is a good idea for anyone who’s sexually active. It’s particularly important for those with a new partner or multiple partners. Early diagnosis and treatment can help stop the spread of infections.Before having sex with a new partner, it’s important to discuss your sexual history.Both of you should also be screened for STDs by a healthcare professional.Since STDs often have no symptoms, testing is the only way to know for sure if you have one.When discussing STD test results, it’s important to ask your partner what they’ve been tested for. Many people assume their doctors have screened them for STDs as part of their regular care, but that’s not always true. You need to ask your doctor for specific STD tests to ensure you take them.If your partner tests positive for an STD, it’s important for them to follow their healthcare provider’s recommended treatment plan. You can also ask your doctor about strategies to protect yourself from contracting the STD from your partner.For example, if your partner has HIV, your doctor will likely encourage you to take pre-exposure prophylaxis (PrEP).If you’re eligible, you and your partner should also consider getting vaccinated for HPV and hepatitis B.By following these strategies and others, you can lower your chances of getting STDs and passing them to others. Learn more about the importance of safe sex and STD prevention.

Gonorrhea: symptoms,causes, signs and how it is spread.

A sexually transmitted bacterial infection that, if untreated, may cause infertility.
Regular screening can help detect instances when an infection is present despite having no symptoms.

HOW IT SPREADS

By mother to baby by pregnancy, labor, or nursing.

By having unprotected vaginal, anal, or oral sex.

What happens if you have gonorrhea for a year without treatment?

Untreated gonorrhea can cause serious and permanent health problems in both women and men. In women, gonorrhea can spread into the uterus or fallopian tubes and cause pelvic inflammatory disease (PID). … If left untreated,gonorrhea can also spread to the blood and cause disseminated gonococcal infection (DGI).

Read also: dengue fever:signs, symptoms and preventions.

Is gonorrhea curable?

Yes, gonorrhea can be cured with the right treatment. It is important that you take all of the medication your doctor prescribes to cure your infection. Medication for gonorrhea should not be shared with anyone. Although medication will stop the infection, it will not undo any permanent damage caused by the disease.

Symptoms

Symptoms may be absent despite an active gonorrheal infection. Symptoms can appear anywhere from 1-14 daysfollowing exposure to the infection.

Men and women experience slightly different symptoms; these can include:

Men

  • white, yellow, or green urethral discharge, resembling pus
  • inflammation or swelling of the foreskin
  • pain in the testicles or scrotum
  • painful or frequent urination
  • anal discharge, itching, pain, bleeding, or pain when passing stools
  • itching, difficulty swallowing, or swollen neck lymph nodes
  • eye pain, light sensitivity, or eye discharge resembling pus
  • red, swollen, warm, painful joints

Women:

  • painful sexual intercourse
  • fever
  • yellow or green vaginal discharge
  • vulvar swelling
  • bleeding in-between periods
  • heavier periods
  • bleeding after intercourse
  • vomiting and abdominal or pelvic pain
  • painful or frequent urination
  • sore throat , itching, difficulty swallowing, or swollen neck lymph nodes
  • eye pain, light sensitivity, and eye discharge resembling pus
  • red, swollen, warm, painful joints

Anal gonorrhea signs include:

itching, bleeding, or pain with passing bowel movements

anal discharge

An itching or burning sensation in the eyes may be a symptom of conjunctivitis. If infected semen or fluid comes into contact with the eyes, a person can develop conjunctivitis.

Causes

Gonorrhea is an infection caused by the bacterium Neisseria gonorrhoeae. It not only affects the reproductive tract, but can also affect the mucous membranes of the mouth, throat, eyes, and rectum.

The infection is transmitted through sexual contact with an infected person involving the penis, vagina, anus, or mouth. Men do not need to ejaculate to transmit or acquire gonorrhea.

Gonorrhea can also be passed from an infected mother to her baby during delivery.

Although all sexually active individuals are at risk for acquiring gonorrhea, the highest rates of infection occur in teenagers, young adults, and African-Americans.

Treatment

Upon displaying symptoms, a doctor may recommend a test for gonorrhea in addition to other diseases. Testing for gonorrhea can be completed by analyzing a urine sample or a swab of an affected area. Swab samples are commonly taken from the penis, cervix, urethra, anus, and throat.

Home kits for women are also available that include vaginal swabs. These kits are sent to a laboratory and results are reported directly to the patient.

If testing is positive for a gonorrhea infection, the individual and their partner will need to undergo treatment. This typically involves:

Antibiotics – a doctor will likely administer both a shot (ceftriaxone) and an oral medication (azithromycin).
Abstaining from sexual intercourse – until treatment is complete, there is still a risk of complications and spread of infection.
Repeat testing in some cases – it is not always necessary to be tested to make sure the treatment has worked. However, the CDC recommends retesting for some patients, and a doctor will decide if it is necessary. Retesting should be performed 7 days after treatment.
If a woman is pregnant and infected with gonorrhea, the infant will be given an eye ointment to prevent gonorrhea transmission. However, antibiotics may be required if an eye infection develops.

Prevention

There are many ways to prevent acquiring or passing on gonorrhea; they include:

  • Abstinence from sex
  • Using condoms for vaginal or anal intercourse
  • Using condoms or dental dams for oral intercourse
  • Having sexual activity with a mutually monogamous, unaffected partner

Individuals should speak with their doctor if they or their sexual partner have been exposed to gonorrhea or if they are experiencing any symptoms of infection.

Space (question and answers about space)

What is space?

Space is everything in the Universe beyond planet Earth. Space is also the name for the near-vacuum between planets, stars, moons and everything else in the Universe.

What is space in universe?

The Universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. … At the largest scale galaxies are distributed uniformly and the same in all directions, meaning that the Universe has neither an edge nor a center.

How many planets are there in space?

eight planets

There are eight planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

What’s in the space?

What is in space besides planets and stars? Most of the universe is empty space, called a vacuum, but it is an imperfect vacuum. There are clouds of interstellar dust and the tiny particles that make up the solar wind. … Radio, heat, and x-rays all echo through space, as do beams of light.

What type of planet is Earth?

A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars.

How old is the earth?

4.543 billion years

How many galaxies are there in the universe?

Several thousand galaxies, each consisting of billions of stars, are in this small view. XDF (2012) view: Each light speck is a galaxy, some of which are as old as 13.2 billion years – the observable universe is estimated to contain 200 billion to 2 trillion galaxies.

Rotation Of The Earth🌎🌍🌏

Earth’s rotation is the rotation of Planet Earth around its own axis. Earth rotates eastward, in pro grade motion. As viewed from the north pole star Polaris, Earth turns anticlockwise.

The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where Earth’s axis of rotation meets its surface. This point is distinct from Earth’s North Magnetic Pole. The South Pole is the other point where Earth’s axis of rotation intersects its surface, in Antarctica.

Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes, and 4 seconds with respect to other, distant, stars (see below). Earth’s rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth’s rotation. Atomic clocks show that a modern day is longer by about 1.7 milliseconds than a century ago,[1]slowly increasing the rate at which UTC is adjusted by leap seconds. Analysis of historical astronomical records shows a slowing trend of about 2.3 milliseconds per century since the 8th century.

History

Among the ancient Greeks, several of the Pythagorean school believed in the rotation of Earth rather than the apparent diurnal rotation of the heavens. Perhaps the first was Philo -laus (470–385 BC), though his system was complicated, including a counter earth rotating daily about a central fire.

A more conventional picture was that supported by Hicet as, Heraclitus and Ecph antus in the fourth century BC who assumed that Earth rotated but did not suggest that Earth revolved about the Sun. In the third century BC, Aristarchus of Samos suggested the Sun’s central place.

However, Aristotle in the fourth century BC criticized the ideas of Philo -laus as being based on theory rather than observation. He established the idea of a sphere of fixed stars that rotated about Earth.This was accepted by most of those who came after, in particular Claudius Ptolemy (2nd century CE), who thought Earth would be devastated by gales if it rotated.

What causes Earth’s rotation?

The Moon formed much closer to Earth than it is today. As Earth rotates, the Moon’s gravity causes the oceans to seem to rise and fall. (The Sun also does this, but not as much) There is a little bit of friction between the tides and the turning Earth,causing the rotation to slow down just a little.

How does the Earth rotate around the sun?

As the Earth rotates, it also moves, or revolves, around the Sun. The Earth’s path around the Sun is called its orbit. It takes the Earth one year, or 365 1/4 days, to completely orbit the S hiun. As the earth orbits the Sun, the Moon orbits the Earth.

What is the speed of Earth rotation?

The earth rotates once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period, and its circumference is roughly 40,075 kilometers. Thus, the surface of the earth at the equator moves at a speed of 460 meters per second or roughly 1,000 miles per hour.

5G — Advantages & Disadvantages

5G is the fifth generation of the latest cellular technology, which is developed to increase the speed of wireless networks. one of the important 5G technology features is, it can handle thousands of traffic than today’s networks which is 10 times faster than 4G. Just imagine, you can download Videos, Media files just in seconds. Meanwhile, 5G is the foundation of Virtual Reality and the Internet of Things.

All smartphone companies are trying best to launch their 5G enabled devices and connections with South Korea and the US

While these nations have already launched 5G connection, 5G Technology in India is a distant dream. There was the latest update which said India and Israel were partnering up to develop 5G Technology. However, as per the government 5G technology will arrive in India as late as 2022.

The 5G technology based devices will operate in different bands with up to 3 to 300 GHz.The frequency ranges below 6 GHz is used for 5G macro optimized, 3 to 30 GHz for 5G E small cells, 30 to 100 GHz for 5G Ultra Dense and 30 to 300 GHz is used for 5G millimeter wave.

Advantages of 5G

1. Data rates of about 10 Gbps or higher can be achieved. which provides the user with better experience and download and upload speeds will be higher.

2. High resolution and bi-directional large bandwidth shaping.

3. 5G mm-wave can achieve latency rate less than 1 ms. which will leads to immediate connection establishment and release with the 5G network by 5G smartphone. Hence traffic load is decreased on 5G

4. Possible to provide a uniform, consistent and uninterrupted, connectivity across the world.

5. Technology is able to gather all networks on one platform.

6. 5G offers 10x decrease in latency, 100x traffic capacity 10x connection density, 3x spectrum efficiency, and 100x network efficiency.

7. Easily manageable with the previous generations.

Disadvantages of 5G

1. 5G types of equipment are costly, requires skilled engineers to install and maintain a 5G network. This increases the cost of 5G deployment and maintenance phases

2. 5G technology is still under process and research is going on.

3. 5G smartphones are costly. Hence it will take time for the common man to make use of 5G technology.

4. Security and privacy issue yet to be solved in 5G

5. Coverage distance of up to 2 meters (in indoor) and 300 meters (in outdoor) can be achieved due to higher losses at high frequencies (such as millimeter waves). 5G mm-wave may suffer many such losses (penetration loss, attenuation due to rain, foliage loss, etc.

Brownian Motion

Brownian Motion is the random motion of particles suspended in a fluid (a liquid or a gas) resulting from their collision with the fast-moving molecules in the fluid.

This pattern of motion typically alternates random fluctuations in a particle’s position inside a fluid sub-domain with a relocation to another sub-domain.

Each relocation is followed by more fluctuations within the new closed volume. This pattern describes a fluid at thermal equilibrium, defined by a given temperature.

Within such fluid there exists no preferential direction of flow as in transport phenomena. More specifically the fluid’s overall linear and angular momenta remain null over time.

It is important also to note that the kinetic energies of the molecular Brownian motions, together with those of molecular rotations and vibrations sum up to the caloric component of a fluid’s internal energy.

This motion is named after the botanist Robert Brown, who was the most eminent microscopist of his time. In 1827, while looking through a microscope at pollen of the plant Clarkia pulchella immersed in water, the triangular shaped pollen burst at the corners, emitting particles which he noted jiggled around in the water in random fashion.

He was not able to determine the mechanisms that caused this motion. Atoms and molecules had long been theorized as the constituents of matter, and Albert Einstein published a paper in 1905 that explained in precise detail how the motion that Brown had observed was a result of the pollen being moved by individual water molecules, making one of his first big contributions to science.

This explanation of Brownian motion served as convincing evidence that atoms and molecules exist, and was further verified experimentally by Jean Perrin in 1908. Perrin was awarded the Nobel Prize in Physics in 1926 “for his work on the discontinuous structure of matter”.

The direction of the force of atomic bombardment is constantly changing, and at different times the particle is hit more on one side than another, leading to the seemingly random nature of the motion.

Huawei Mate 10 Specification

Need a phone you can rely on, Mate 10 is a very awesome phone.

Here are the specifications :

  • Dimensions 150.5 x 77.8 x 8.2 mm (5.93 x 3.06 x 0.32 in)
  • Weight 186 g (6.56 oz)
  • Build Front/back glass, aluminum frame
  • SIM Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
  • IP53 dust and splash protection
  • Type IPS LCD capacitive touchscreen, 16M colors
  • Size 5.9 inches, 95.6 cm2 (~81.6% screen-to-body ratio)
  • Resolution 1440 x 2560 pixels, 16:9 ratio (~499 ppi density)
  • Protection Corning Gorilla Glass (unspecified version)
  • HDR10
  • OS Android 8.0 (Oreo), upgradable to Android 9.0 (Pie); EMUI 9.1
  • Chipset HiSilicon Kirin 970 (10 nm)
  • CPU Octa-core (4×2.4 GHz Cortex-A73 & 4×1.8 GHz Cortex-A53)
  • GPU Mali-G72 MP12
  • Card slot microSD, up to 256 GB (uses shared SIM slot) – dual SIM model only
  • Internal 64GB 4GB RAM
  • Dual 12 MP, f/1.6, 27mm (wide), 1/2.9″, 1.25µm, PDAF, Laser AF, OIS
  • 20 MP B/W, f/1.6, 27mm (wide), 2x lossless zoom, PDAF, Laser AF, OIS
  • Features Leica optics, dual-LED dual-tone flash, panorama, HDR
  • Video 2160p@30fps, 1080p@30/60fps
  • Single 8 MP, f/2.0, 26mm (wide), 1/3.2″, 1.4µm, AF
  • Video 1080p@30fps
  • SOUND
  • Loudspeaker Yes, with stereo speakers
  • 3.5mm jack Yes
  • 32-bit/384kHz audio
  • Active noise cancellation with dedicated mic
  • WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, DLNA, Wi-Fi Direct, hotspot
  • Bluetooth 4.2, A2DP, aptX HD, LE
  • GPS Yes, with A-GPS, GLONASS, BDS
  • NFC Yes
  • Infrared port Yes
  • Radio No
  • USB 3.1, Type-C 1.0 reversible connector; USB Host
  • Fingerprint (front-mounted), accelerometer, gyro, proximity, barometer, compass
  • Messaging SMS(threaded view), MMS, Email, Push Email, IM
  • Browser HTML5
  • Non-removable Li-Po 4000 mAh battery
  • Charging Fast battery charging 22.5W (58% in 30 min)
  • Colors Mocha Brown, Black, Champagne Gold, Pink Gold
  • Models ALP-L29, ALP-L09, ALP-AL00

What’s the first video ever uploaded on YouTube?

You Tube was founded on February 14, 2005

“Me at the zoo” is the first video that was uploaded to YouTube. I It was uploaded on April 23, 2005
by the site’s co-founder Jawed Karim.


Google bought the site in November 2006 for US$1.65 billion; YouTube now operates as one of Google’s subsidiaries.

He created a YouTube account on the same day. The video was shot by Yakov at the San Diego Zoo, featuring Karim in front of the elephants in their old exhibit in Elephant Mesa, making note of their long trunks.

5 reasons why the HUAWEI Y9 Prime 2019 phone is great for online business

HUAWEI Y9 Prime 2019, the company’s latest smartphone is a phone made for every type of user. It is fast, powerful, stylish and packed to the brim with innovations and features that sets it in a league of its own. Some of these features include a stunning new display design and even an innovative front camera placement that will for sure catch the eye of any tech-savvy user.
The HUAWEI Y9 Prime 2019
Here are the top five reasons that will make you consider the HUAWEI Y9 Prime 2019 as your next smartphone:

1. The massive ultra fullview display

The display is one of the key features of a modern smartphone, be it for entertainment, browsing or even gaming. On the HUAWEI Y9 Prime 2019, the display has been improved vastly to accommodate all the user’s needs, stepping up the game in display design and providing an uncompromised vision.
Housing a massive 6.59-inch display, the HUAWEI Y9 Prime 2019’s display is purely screen space, made possible by removing all kinds of notches, sliders or bezels. Thanks to this innovative design, users can enjoy an uninterrupted viewing experience at an FHD+ resolution of 2340 x 1080. As immersive as this display can get, concerns of extended use do arise which is why the HUAWEI Y9 Prime 2019 comes with TÜV Rheinland’s certified Low Blue Light Eye Protection that filters out harmful blue light emissions and adjusts colour temperature accordingly for protection against eye strain.

Buy HUAWEI Y9 Prime 2019- Nigerians

2. An auto pop-up front camera just when you need it

When you think “bezel-less display”, the first question that comes to mind will be about the location of the front camera. On the HUAWEI Y9 Prime 2019, the front camera is tucked away neatly into the top of the phone, and will automatically pop up when turned on, thus removing the need for a bezel and making it possible for a true bezel-less display.
However, this tiny camera is quite powerful as well. It packs a powerful 16MP lens and is supported by Huawei’s powerful AI capable of identifying up to eight scenarios for an accurate scene and object recognition. Users can also benefit from 3D Portrait Lighting features and an AI backlight that contributes towards stunning selfies.

3. A powerful triple camera setup at the back

The HUAWEI Y9 Prime 2019 also houses a powerful triple camera setup on the back. This setup includes a 16MP + 8MP + 2MP configuration that is capable of producing detailed images with enhanced clarity, contrast and quality.
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Each of these lenses contributes towards creating stunning images. For instance, the 16MP lens comes with an F/1.8 aperture for extra light resulting in bright and colourful pictures, while the 2MP camera assists and generates the depth of field effects. Finally, the 8MP lens offers a 120° field of view for a stunning wide-angle shot.
Additionally, the camera setup also houses night mode with AI stabilization, which helps in low light photography and videography as well as shooting Super Slow-Motion videos at 480 fps.

4. A large battery to go all day long

The HUAWEI Y9 Prime 2019 comes with an Ultra-large battery of 4000 mAh for intensive full-day use. Additionally, the phone ensures that the battery is used efficiently thanks to the AI Power Management system for better performance. Be it gaming or entertainment, you can go on for a long time with the HUAWEI Y9 Prime 2019.

5. More storage for more memories

HUAWEI Y9 Prime 2019 is a massive storage capacity of 128GB, for all your photos, videos, apps, files and more. If 128GB is not enough, you can easily upgrade to 512GB as well.
Supporting all of this is the HUAWEI Y9 Prime 2019’s 4GB RAM which ensures that apps load faster, allowing a much smoother user experience.
The phone is available on Jumia, SLOT, Pointek, 3CHUB or Raya nationwide.

Check out this link to get the phone (Nigerians only)

iPhone 11 Pro

The iPhone 11 Pro and 11 Pro Max are smartphones designed, developed and marketed by Apple Inc.

They are the 13th-generation flagships of the iPhone, succeeding the iPhone XS and XS Max, respectively. Apple CEO Tim Cook unveiled the devices alongside a lower-end model, the iPhone 11, on September 10, 2019, at the Steve Jobs Theater at Apple Park. Pre-orders began on September 13, 2019, and went on sale by September 20.

Design

The iPhone 11 Pro is available in gold, silver, Space Gray, and Midnight Green, a new color previously not available on iPhones. Similar to the iPhone XS, there is a display cutout at the front that includes the 12MP TrueDepth camera system and speaker. There is also a new rear camera design with three cameras and a flash in a larger, square-shaped bump, which is the most visible difference compared to the iPhone XS.The Apple logo is now centered on the back of the device with no text, and the glass has a frosted matte finish, unlike the glossy finish found on other glass-backed iPhones.

Software

The iPhone 11 Pro and Pro Max initially shipped with the iOS 13 operating system. The phone also comes with Siri, Face ID (through the TrueDepth camera), Apple Pay, and supports Apple Card.

Airpods ( wireless blue tooth )

AirPods are wireless Bluetooth earbuds created by Apple. They were first released on December 13, 2016. The product’s second iteration, with improved battery life, was released on March 20, 2019. AirPods are Apple’s most popular accessory product, with 35 million units sold in 2018 alone.

In addition to playing audio, AirPods feature a built-in microphone that filters out background noise, which allows taking phone calls and talking to Apple’s digital assistant, Siri. Additionally, built-in accelerometers and optical sensors mean that AirPods can detect taps (e.g. double-tap to pause audio) and in-ear placement, which enables automatic pausing when they are taken out of the ears.

On March 20, 2019, Apple released the second generation AirPods, which feature the H1 chip and hands-free “Hey Siri” support. An optional wireless charging case was added in the offerings. Apple claims that the new AirPods have 50% more talk time over the 1st generation AirPods, which were discontinued on the same day.

Huawei Mate 30

The Huawei Mate 30 is a line of Android-based phablets manufactured by Huawei as part of its Huawei Mate series, and the successor to the Mate 20.

The Mate 30 comprises the Mate 30/5G, Mate 30 Pro/5G, and Mate 30 RS Porsche Design, which were unveiled on 19 September 2019.

Read also: Iphone 11

Developer

Huawei

Slogan

Rethink Possibilities

Series

Huawei Mate

First released

26 September 2019; (China)

Predecessor

Huawei Mate 20

Related

Huawei P30

Form factor

Slate

Dimensions

Huawei Mate 30

160.8 x 76.1 x 8.4 mm (6.33 x 3.00 x 0.33 in)

Huawei Mate 30 Pro

158.1 x 73.1 x 8.8 mm (6.22 x 2.88 x 0.35 in)

Mass

Huawei Mate 30

196 g (6.91 oz)

Huawei Mate 30 Pro

198 g (6.98 oz)

Operating system

EMUI 10 (based on Android 10)

System on chip

HiSilicon Kirin 990

CPU

Huawei Mate 30/Pro

Octa-core (2×2.86 GHz Cortex-A76 & 2×2.09 GHz Cortex-A76 & 4×1.86 GHz Cortex-A55)

Huawei Mate 30 5G/Pro 5G

Octa-core (2×2.86 GHz Cortex-A76 & 2×2.36 GHz Cortex-A76 & 4×1.95 GHz Cortex-A55)
GPU
Mali-G76 MP16

Memory

6GB or 8GB RAM

12GB RAM (RS Porsche Design)

Storage

128GB or 256GB

512GB (RS Porsche Design)

Battery

Huawei Mate 30

Non-removable Li-Po 4200 mAh battery

Huawei Mate 30 Pro

Non-removable Li-Po 4500 mAh battery

Read also: Huawei mate X

Display

Huawei Mate 30

OLED capacitive touchscreen, 16M colors

6.62 inches, 107.6 cm2 (~87.9% screen-to-body ratio)

1080 x 2340 pixels, 19.5:9 ratio (~389 ppi density)

DCI-P3, HDR10

Huawei Mate 30 Pro

OLED capacitive touchscreen, 16M colors

6.53 inches, 108.7 cm2 (~94.1% screen-to-body ratio)

1176 x 2400 pixels, 18.5:9 ratio (~409 ppi density)

Corning Gorilla Glass 6

DCI-P3, HDR10

Rear camera

Huawei Mate 30

Triple. 40 MP, f/1.8, 27mm (wide), 1/1.54″, PDAF, Lazer AF 8 MP, f/2.4, 80mm (telephoto), 1/4″, PDAF, Lazer AF, OIS, 3x optical zoom 16 MP, f/2.2, 17mm (ultrawide)

Leica optics, dual-LED dual-tone flash, panorama, HDR 2160p@30/60fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS

Huawei Mate 30 Pro

Quad. 40 MP, f/1.6, 27mm (wide), 1/1.7″, PDAF, OIS 8 MP, f/2.4, 80mm (telephoto), 1/4″, PDAF, OIS, 3x optical zoom 40 MP, f/1.8, 18mm (ultrawide), 1/1.54″, PDAF 3D ToF camera

Leica optics, dual-LED dual-tone flash, panorama, HDR

2160p@30/60fps, 1080p@30/60/120fps, 1080p@960fps, 720p@7680fps, gyro-EIS.

Read also: A brief history of Huawei

Front camera

Huawei Mate 30

24 MP, f/2.0 3D ToF camera

HDR

1080p@30fps

Huawei Mate 30 Pro

32 MP, f/2.0, (wide) 3D ToF camera

HDR, panorama

1080p@30fps

Sound

Loudspeaker with stereo speakers (Mate 30) or acoustic speaker (Mate 30 Pro)
3.5mm jack (Mate 30)

32-bit/384kHz audio

Active noise cancellation with dedicated mic

Refrigerator ( colloquially )

A refrigerator (colloquially fridge) consists of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from the inside of the fridge to its external environment so that the inside of the fridge is cooled to a temperature below the ambient temperature of the room. Refrigeration is an essential food storage technique in developed countries.

The lower temperature lowers the reproduction rate of bacteria, so the refrigerator reduces the rate of spoilage. A refrigerator maintains a temperature a few degrees above the freezing point of water.

Optimum temperature range for perishable food storage is 3 to 5 °C (37 to 41 °F).A similar device that maintains a temperature below the freezing point of water is called a freezer. The refrigerator replaced the icebox, which had been a common household appliance for almost a century and a half.

The introduction of Freon in the 1920s expanded the refrigerator market during the 1930s. Home freezers as separate compartments (larger than necessary just for ice cubes) were introduced in 1940. Frozen foods, previously a luxury item, became commonplace.

Freezer units are used in households and in industry and commerce. Commercial refrigerator and freezer units were in use for almost 40 years prior to the common home models.

The freezer-on-top-and-refrigerator-on-bottom style had been the basic style since the 1940s, until modern refrigerators broke the trend.

A vapor compression cycle is used in most household refrigerators, refrigerator–freezers and freezers. Newer refrigerators may include automatic defrosting, chilled water, and ice from a dispenser in the door.

Domestic refrigerators and freezers for food storage are made in a range of sizes. Among the smallest are Peltier-type refrigerators designed to chill beverages.

A large domestic refrigerator stands as tall as a person and may be about 1 m wide with a capacity of 600 L. Refrigerators and freezers may be free-standing, or built into a kitchen. The refrigerator allows the modern household to keep food fresh for longer than before. Freezers allow people to buy food in bulk and eat it at leisure, and bulk purchases save money.

A DC MOTOR

A DC motor is any of a class of rotary electrical machines that converts direct current electrical energy into mechanical energy. The most common types rely on the forces produced by magnetic fields.

Nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current flow in part of the motor.

DC motors were the first form of motor widely used, as they could be powered from existing direct-current lighting power distribution systems.

A DC motor’s speed can be controlled over a wide range, using either a variable supply voltage or by changing the strength of current in its field windings. Small DC motors are used in tools, toys, and appliances.

The universal motor can operate on direct current but is a lightweight brushed motor used for portable power tools and appliances.

Larger DC motors are currently used in propulsion of electric vehicles, elevator and hoists, and in drives for steel rolling mills. The advent of power electronics has made replacement of DC motors with AC motors possible in many applications.

Huawei Mate x

The Huawei Mate X is a foldable Android-based Smartphone produced by Huawei. It was unveiled at MWC 2019 on February 25, 2019.

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It was originally scheduled to launch in June 2019. The launch was pushed back to allow for extensive testing in light of the failures reported by users of a similar product, the Galaxy Fold from Samsung. The Mate X will launch in November 2019.

Hardware

The Mate X has an 8-inch OLED display that can fold outwards resulting in a 6.6-inch main display and a 6.38-inch rear display.

Its power button contains a fingerprint reader. The screen is covered by plastic and is secured by a push-button latch when closed. It uses the Kirin 980 and has 8 GB of RAM with 512 GB of UFS 2.1 storage. The latter is expandable up to 256 GB via Huawei’s proprietary Nano Memory. The device contains two batteries split between the two halves, totaling a 4500 mAh capacity, and can quick charge at 55W. The Mate X has a bar situated on the right side of the device with four cameras and an LED flash on the back, the power button/fingerprint sensor on the left side and a USB-C port on the bottom.

The cameras include a 40 MP main lens, a 16 MP wide-angle lens, an 8 MP telephoto lens and a time-of-flight sensor. The bar is roughly twice as thick as the rest of the device, giving the user a grip to hold it. Unlike the Galaxy Fold, it comes standard with 5G enabled by Huawei’s own Balong 5000 modem.

Software

The Mate X runs on Android 9.0 “Pie” with Huawei’s EMUI 9.1 skin or due to its expected launch in November, EMUI 10 and Android 10.