If the chemical sodium is dropped into water it will immediately and violently explode.
67
The storage capacity of human brain exceeds 4 Terrabytes.
140
A cubic yard of air weighs about 2 pounds at sea level.
31
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Nylon is made from coal and petroleum.
42
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17