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Can We Create Artificial Gravity?

Yes, we can. We can totally create the artificial gravity seen in movies like 2001: A Space Odyssey or Elysium, it will just cost a lot of freaking money and require a lot of freaking resources. Real Engineering explains how centrifugal force works as artificial gravity and estimates (using maths cribbed from how much the ISS costs) the cost needed to build it: only around five trillion dollars and 10 years of the world’s total aluminium production. And that’s just for starters.


The US FDA Wants Proof Hand Sanitizer Works

Hand sanitiser is a constant presence in modern life, from your purse to your office desk to the automatic dispensers in airports and classrooms. Now the US Food and Drug Administration says that it’s looking for data on the safety and efficacy of these products.


Stephen Colbert Explains Why The Rio Olympics Could Be A 'Massive Catastrophe'

Video: It’s no secret that the Rio Olympic games, kicking off this August, are in serious trouble. There’s crime. There’s disease. There’s Jaguar slaughter, and lots of other problems. Stephen Colbert recently summed up all the reasons that the Olympics will likely be a disaster in just five minutes.


Century-Old Time Capsule Opened, Includes US 10-Cent Note

A time capsule sealed by a bank in 1916 was opened in Saratoga Springs, New York this week. And it has many of the things you’d expect — like some photos of the town, a letter from the president of the bank in 1916 and some old coins. But one artefact stuck out as peculiar to the onlookers of 2016: A US 10-cent note.


What Happened Before History?

Video: Kurzgesagt goes deep into the history of the origin of humans in its latest animation explainer. And while it’s fun to see how far we’ve come, it’s almost more interesting to find out how little we know about the time before history.


Why Female Praying Mantises Devour Their Partners During Sex

Female praying mantises have a habit of killing and eating their partners during sex, which sucks for the male. Or does it? A fascinating new study shows that this sacrifice is actually giving the males a distinct reproductive advantage.


The Window For Avoiding A Dangerous Climate Change Has Closed

Barring some incredible new carbon capture technology, the window for limiting global warming to less than 1.5C appears to have closed. That’s the stark conclusion of a report out in Nature today, which finds that the carbon reductions pledges penned into the Paris Agreement are ridiculously inadequate for keeping our climate within a safe and stable boundary.


A Plan To Save This Australian Mammalian Species From Extinction Came Too Late

The rat-like Bramble Cay melomys is the first mammal to go extinct because of human-induced climate change. The conservationists who made this sad discovery now admit they were actually trying to capture these rodents for a captive breeding program — but they arrived too late.


An Unearthly Sound Is Emanating From The Caribbean Sea

Beneath the hum of ship traffic and the chatter of marine life, another sound is emanating from the Caribbean Sea. It’s far too low pitched for humans to hear, but its signature can be detected from space. Scientists have never seen — or heard — anything like it.


The 12 Cognitive Biases That Prevent You From Being Rational

The human brain is capable of 1016 processes per second, which makes it far more powerful than any computer currently in existence. But that doesn’t mean our brains don’t have major limitations. The lowly calculator can do maths thousands of times better than we can, and our memories are often less than useless — plus, we’re subject to cognitive biases, those annoying glitches in our thinking that cause us to make questionable decisions and reach erroneous conclusions. Here are a dozen of the most common and pernicious cognitive biases that you need to know about.


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