Sci – Tech
How do x-rays see inside you?
Karen Finlay/The Conversation Have you ever played shadow puppets to make shadow pictures on the wall? When you do, your hand is stopping the light rays from the lamp reaching the wall. X-ray images are a little like that.Try putting a torch up against your hand and seein ...বিস্তারিত
BUET student Mehedi first Bangladeshi software engineer of Facebook
Hossen Sohel of DOT Mehedi Bakht is a Bangladeshi born American software engineer. He joined the Facebook in 2012 as the first Bangladeshi software engineer. His mother is an economist and his mother is a homemaker, reports VarsityVoice.net. Mehedi was a brilliant student s ...বিস্তারিত
Wireless? Stay away!
Ronnie Jordan/ Seven Billion Today Unsure if you guys have heard the news but rumour has it that Apple AirPods are being investigated for potential health risks. Actually, that goes for all wireless earphones - apparently the technology is "unknown" and health implicatio ...বিস্তারিত
Where do rocks come from?
Alan Collins, Professor of Geology, University of Adelaide/The Conversation As strange as it sounds, rocks are made from stardust; dust blasted out and made from exploding stars.In fact, our corner of space has many rocks floating around in it. From really fine dust, to p ...বিস্তারিত
What’s the tallest skyscraper it’s possible to build?
Philip Oldfield/ The Conversation The world’s current tallest skyscraper is the Burj Khalifa in Dubai. It’s 828 metres tall, which is over two-and-a-half times as tall as any skyscraper in Australia.However, there is a skyscraper being built in Jeddah, Saudi Arabia, t ...বিস্তারিত
The Milky Way is huge. But just how huge?
Imogen Whittam/ Gulf news The Milky Way is the galaxy we live in. A galaxy is a system of millions or billions of stars. They’re all mixed together with gas and dust, and the whole lot is held together by gravity. As far as astronomers like me can tell, there are about ...বিস্তারিত
The future of content: Can AI replace humans
Rilind Elezaj / Hacker Noon The robot uprising is a very legitimate fear that many people have. Some people believe that it is only a matter of time before robots completely take over the world. They believe that human beings are slowly creating the tools for their own de ...বিস্তারিত
The moon that got away
Marina Koren/The Atlantic For the first time, astronomers thought they’d discovered a moon in another solar system. But others weren’t sure it actually existed. This might offend some astronomers, but exoplanets are kind of old news. Over the course of two decades, t ...বিস্তারিত
How long has gravity existed?
Brooke Simmons/ The Happy Scientist Gravity is a force between two masses, so gravity exists wherever there is mass. To discover when gravity started to exist, we need to understand what mass is, and when it started to exist.Let’s dive right in: “mass” is what we us ...বিস্তারিত
How do sea creatures drink sea water and not get sick?
Glenn Hyndes, Professor in Coastal Ecology, Edith Cowan University/ The Conversation Everything in our bodies is made of cells. And these cells need chemicals, such as salt, in and around them to work properly. The chemical balance needs to be just right.If we don’t get ...বিস্তারিত