A cesium atom in an atomic clock beats over nine billion times a second.
43
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Pumice is the only rock that floats on water.
14
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Scientists aren't sure what color dinosaurs were.
312
One barrel of petroleum holds 42 gallons.
20
The left ear is more responsive to words of love and emotion whispered into it than the right.
40