We’re hugely invested in the idea that the cause of obesity lies with diet – and that we should therefore solve the problem with kale and apple soup (and other such products). But the real cause of obesity has nothing to do with food. It lies in our emotional under-nourishment. We will start to eat less when we feel more connected, more understood and more in touch with our feelings.
The universe is bustling with matter and energy. Even in the vast, apparent emptiness of intergalactic space, there’s one hydrogen atom per cubic meter. But is there such thing as a total absence of everything? Is it possible to make a completely empty space? Rolf Landua and Anais Rassat explain the science behind vacuums.
We live in an era of self driving cars, autonomous drones, deep learning algorithms, computers that beat humans at chess and go, and so on. So it’s natural to ask, will artificial superintelligence replace humans, take our jobs, and destroy human civilization? Or will AI just become tools like regular computers. AI researcher Max Tegmark helps explain the myths and facts about superintelligence, the impending machine takeover, etc.
A new material inspired by mussels may be the key to fillings and crowns that never break or fall out.
There are over 170,000 words currently in use in the English language. Yet every year, about a thousand new words are added to the Oxford English Dictionary. Where do they come from, and how do they make it into our everyday lives? Marcel Danesi explains how new words enter a language.
Biology textbooks are full of drawings of DNA, but none of those show what DNA actually looks like. Sure, they’re good models for understanding how DNA works, but inside of real cells, it’s a whole lot more interesting. Learn why we can’t look directly at DNA, and find out how DNA is actually packed inside cells.