The bark of an older redwood tree is fireproof.
65
Most dust particles in your house are made from dead skin!
67
Your brain is 80% water.
525
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
A cesium atom in an atomic clock beats over nine billion times a second.
43
Iron weighs more after it rusts.
16
Pumice is the only rock that floats on water.
14