Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Pure water (H2O) does not conduct electricity on its own.
46
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
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
One third of the electricity produced on earth is used to power electric light bulbs!
75
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Iron weighs more after it rusts.
68