Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Scientists aren't sure what color dinosaurs were.
312