Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Diamonds can be shattered with a hammer.
-104
A cubic yard of air weighs about 2 pounds at sea level.
31
The average temperature at 40,000 feet above sea level is -60 F.
56
The bark of an older redwood tree is fireproof.
65
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1