Scientists aren't sure what color dinosaurs were.
312
A cubic yard of air weighs about 2 pounds at sea level.
31
Your brain is 80% water.
525
Iron weighs more after it rusts.
68
The force of a suction cup is calculated using F=AP.
15
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
In zero gravity, a candle's flame is round and blue.
16
A cesium atom in an atomic clock beats over nine billion times a second.
43