Sound travels fifteen times faster through steel than through air.
134
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
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
In zero gravity, a candle's flame is round and blue.
16
For every gallon of sea water, you get more than a quarter pound of salt.
45
Aluminum used to be more valuable than gold!
84
Pure water (H2O) does not conduct electricity on its own.
46