The average temperature at 40,000 feet above sea level is -60 F.
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Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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Billions of neutrinos pass unnoticed through your body every second.
6
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
Most dust particles in your house are made from dead skin!
67
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21