Sound travels about 4 times faster in water than in air.
408
A cubic yard of air weighs about 2 pounds at sea level.
31
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Research indicates that plants grow healthier when they are stroked.
173
Scientists aren't sure what color dinosaurs were.
312
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
The force of a suction cup is calculated using F=AP.
15
A ball of glass will bounce higher than a ball made of rubber.
73