Science and Technology

Wednesday, 10 August 2022 06:40

WhatsApp extends time limit to delete a message, boosts privacy features

WhatsApp now allows you to delete a message for up to two days and 12 hours (60 hours in total), so you can remove an accidentally sent chat even after hours. Previously, this limit was 1 hour, 8 minutes and 16 seconds — yep, there were seconds involved. The company’s tweet about this feature just mentioned “little over two days” but didn’t specify the 12-hour part. WhatsApp first introduced the unsend feature back in 2017 with a time limit of just seven minutes but later increased it to one hour and eight minutes. Last year, WABetaInfo noted that the company…

Sunday, 07 August 2022 05:57

Neuroscience says these 5 simple tricks will calm your anxiety instantly

We live in anxiety-ridden times. What's going to happen to the economy? Is political strife going to get worse? Am I doing the right things with my life? Fortunately, we can point to simple techniques that neuroscience suggests work effectively to make people much less anxious – quicker than you think. Here are five of them: 1. Listen to this specially designed song I'm putting this first because it's my favorite and I'm still shocked at how well it works. A decade ago, British musicians teamed up with sound therapists to record a song called Weightlessness that stimulates specific neurological…

Friday, 05 August 2022 06:59

How the Hellfire missiles used to kill al-Qaeda leader al-Zawahiri work

Photos showing the home in the heart of Kabul where al-Qaeda leader Ayman al-Zawahiri was killed in a CIA drone strike earlier this week show very little structural damage and U.S. officials say no one else was injured. To make that happen it appears that planners decided to use modified versions of the Hellfire missiles that are the main weapons carried by MQ-9 Reaper drones. Used in other counterterrorism drone strikes, the R9X missile is a version of the Hellfire missile that has an inert warhead and whose main feature is the deployment of metal blades that kill targets with…

Thursday, 28 July 2022 06:40

After chess robot breaks boy's finger, it's clear the machines are coming for us

I take no joy in saying this, but for our own survival, we humans must immediately destroy all robots. They drew first blood. In case you missed the news story – perhaps because you were kidnapped by a self-driving robot car – a chess-playing robot at a tournament in Russia grabbed and broke a 7-year-old boy’s finger during a game last week. Video of what I’m calling “the attack” shows a robotic arm lifting a chess piece off the board, followed by the boy quickly sliding a different piece across the board. As the human child is moving the piece,…

Tuesday, 26 July 2022 06:52

Why it's so hard to defend against cruise missiles

On July 14, the Center for Strategic and International Studies in Washington, DC held a one-day conference premised on a specific threat: What if, in the future, war comes to the United States via cruise missile? Pointing to new developments in cruise missile technology, and the limitations of existing early warning systems that are focused on the high arcing trajectories of ballistic missiles, the CSIS conference and accompanying report suggests that to defend the continental United States from such a threat, the military should adapt and deploy the kind of cruise missile defenses presently used as regional weapons. Unlike ballistic…

Tuesday, 19 July 2022 06:53

'Ghost heart': Built from the scaffolding of a pig and the patient's cells, this cardiac breakthrough may soon be ready for transplant into humans

The first time molecular biologist Doris Taylor saw heart stem cells beat in unison in a petri dish, she was spellbound. “It actually changed my life,” said Taylor, who directed regenerative medicine research at Texas Heart Institute in Houston until 2020. “I said to myself, ‘Oh my gosh, that’s life.’ I wanted to figure out the how and why, and re-create that to save lives.” That goal has become reality. On Wednesday at the Life Itself conference, a health and wellness event presented in partnership with CNN, Taylor showed the audience the scaffolding of a pig’s heart infused with human…

Saturday, 02 July 2022 06:53

13 hidden WhatsApp features you should know

WhatsApp contains numerous features that make the messaging app more useful, convenient, private, or just more fun. You can customize the appearance of your chats, share your location, or add formatting to your text messages. Here are 13 of the best little-known or unexpected features in WhatsApp. With about 2 billion active users, WhatsApp is the most popular messaging app in the world. An app this popular must be doing something right, and in fact the combination of cross-platform compatibility and end-to-end encryption helps make it so popular. But WhatsApp also has a wealth of features — big and small,…

Wednesday, 29 June 2022 06:20

Scientists develop security check system that uses your breath

Biometric authentication could soon be revolutionized as scientists in Japan have developed a security tool which identifies people by their breath. Being able to fully rely on identity check systems is more crucial than ever for public institutions such as airports but also a wide variety of private companies. Researchers from Kyushu University said their olfactory sensor had an accuracy of 97 percent in a first series of tests. Chaiyanut Jirayupat from Kyushu University's Institute for Materials Chemistry and Engineering is the first author of the study. Speaking about the potential advantages compared to security checks of fingerprints, voices or…

Monday, 20 June 2022 06:44

WhatsApp adds new privacy controls for profile photos and ‘Last Seen’ status

After previewing the feature in beta last April, WhatsApp is rolling out greater privacy controls for Profile Photo, About, Status and Last Seen settings, the company tweeted. Until now, you could only block those settings for Everyone, My Contacts or Nobody, but the new update introduces a "My Contacts Except" option that offers far more granular control. The "Last Seen" status is a particular privacy danger, as it indicates when someone last checked the app. That provides a way to find out if a contact may have potentially seen your message even if they have read receipts turned off. The…

Saturday, 18 June 2022 06:33

How many bones are in your body and why does the number change? We found the answers

Everyone has bones, no matter who you are or where you are, but not everyone understands the importance of changes in what’s going on inside their bodies. Walking, sleeping and having secure organs are all possible with the help of our skeletons. The structure that your bones grant your body, plus the mobility they enable us to have, in addition to the protection of your organs, make them invaluable in preserving and continuing human life. And if you think you can count the number of bones you have, don't even try. It's too complicated. How many bones are in the…

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Monday, 13 June 2022 06:30

The world's first carbon dioxide battery is here and needs only steel and water

The island of Sardinia in Italy is known as a world-famous tourist destination. It will now also be known as the home of the world's first carbon-dioxide battery launched by a startup, Energy Dome, Electrek reported. The role of carbon dioxide in heating up the planet is well acknowledged. While countries are making efforts to curb their carbon emissions, there is also the need to trap carbon dioxide that is currently being released to ensure that the planet's temperature increases remain under control. To achieve this, many are looking to capture carbon directly from the atmosphere and store it. However,…

Friday, 03 June 2022 06:24

Vietnam develops 'world's first' African swine fever vaccine for commercial use

Vietnam said on Wednesday it had successfully developed a vaccine to administer to pigs to fight African swine fever, with the aim of becoming the first country to commercially produce and export it. African swine fever, one of the most devastating livestock diseases, was first detected in Vietnam in February 2019 and forced the country to cull around 20% of its hog herd last year. It originated in Africa before spreading to Europe and Asia and has killed hundreds of millions of pigs globally. African swine fever is harmless to humans. "This is a milestone of the veterinary industry," deputy…

Saturday, 28 May 2022 06:27

Elon Musk’s Starlink internet service gets FG’s approval to roll out in Nigeria

Elon Musk, SpaceX founder, says Starlink, the company’s satellite internet service, has been approved in Nigeria. Musk said this on Friday via his verified Twitter page. In 2021, TheCable reported that the company, which saw Nigeria as a critical market, was in talks with the Nigerian Communications Commission (NCC) to secure licences needed to launch Starlink. On Tuesday, Musk had hinted at rolling out the satellite internet service in Africa on his Twitter account after a user asked about his plans for Africa. Consequently, the billionaire, who is also the founder of Tesla Inc. announced the approval of the internet…

Thursday, 19 May 2022 06:25

Russia launches new generation of laser weapons in Ukraine

Russia on Wednesday said it was using a new generation of powerful laser weapons in Ukraine to burn up drones, deploying some of Moscow’s secret weapons to counter a flood of Western arms supplied to its former Soviet neighbour. President Vladimir Putin in 2018 unveiled an array of new weapons including a new intercontinental ballistic missile, underwater nuclear drones, a supersonic weapon and a new laser weapon. Little is known about the specifics of the new laser weapons. Putin mentioned one called Peresvet, named after a medieval Orthodox warrior monk Alexander Peresvet who perished in mortal combat. Yury Borisov, the…

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