One cubic foot of gold weighs more than 1,200 pounds!
78
Your brain is 80% water.
525
Pumice is the only rock that floats on water.
14
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3