At only eights years-old, Zion Harvey is the youngest person with a double hand transplant ever. Four teams of surgeons worked over 11 hours to complete the complicated operation. Zion lost both of his hands and feet when he contracted sepsis at age two and experienced multiple organ failures. When he was four, he received a kidney transplant from his mother, and leg prosthetics have enabled him to engage in many activities.

This is Richard Feynman's take on a simple question, why do magnets repel each other?

A little more on Richard Feynman. He was an American theoretical physicist known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, and the physics of the superfluidity of supercooled liquid helium, as well as in particle physics for which he proposed the parton model.

As always: A scientist is not a person who gives the right answers, but one who asks the right questions. ...

What's happening: The foam used in this experiment is a type of synthetic carbon, which means it's so dense, it doesn't allow for air-flow. Because of this, the heat smoulders through the material, rather than forming a proper flame, sucking the oxygen out as it goes, and leaving behind the dried out remains. This is the same reaction that happens when you turn wood into charcoal.

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This type of optical illusion plays with our brain’s sense of perspective: the dragon’s face looks like it’s sticking out toward us because, after all, we know from a life time of experience that faces stick out instead of cave in.

But the exact opposite is actually the case here. Regardless of what you perceive, the entire face of this dragon is inverted making everything backwards: For example, the right eye is actually farther away from us than the left eye, and it’s this inversion that confuses our brains and makes us think the dragon is staring at us.

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This lion, named Will, spent his life with a traveling circus in Brazil. "For 13 long years, the lion had been confined to a cramped cage and denied any semblance of a normal existence," the Sao Paulo sanctuary wrote.

Lost Lake, located in central Oregon, is known for rapidly draining every year through a six-foot (two-meter) wide hole in the lake's bottom (as shown in the video). Early in the following spring, however, the lake fills up again, as snowmelt from the surrounding mountains accumulates faster than water can drain out through the hole. That hole is really a lava tube - a geologic feature made when lava cools around the edges of a river of molten rock. After the hot lava drains away, it can leave an empty space. ...

Rhino beetles and other ginormous bugs are kept as pets, used in gambling fights, and also eaten as food. You've got to see the size of these things!

Watch uranium emits radiation inside a cloud chamber. This is a small piece of uranium mineral sitting in a cloud chamber, which means you can see the process of decay and radiation emission.


Source: http://www.sciencealert.com/watch-uranium-emits-radiation-inside-cloud-chamber ...