Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The bark of an older redwood tree is fireproof.
65
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
For every gallon of sea water, you get more than a quarter pound of salt.
45