Did you know that on Venus the Sun rises in the west and sets in the east? Or that Saturn is so light it would float on water? Or that some stars are 100 times

Did you know that a full head of human hair is strong enough to support 12 tons? Or that a single bolt of lightning contains enough energy to toast 100,000 piec

Did you know that polar bears have black skin? Or that crocodiles cry whenever they eat? Or that butterflies taste with their legs? From pottering penguins to s

Did you know that your body makes a billion cells a minute? Or that your fingers have no muscles in them? Or that if your blood vessels were stretched out in a

Knowing where things are seems effortless. Yet our brains devote tremendous computational power to figuring out the simplest details about spatial relationships