The bark of an older redwood tree is fireproof.
65
According to studies, men change their minds two to three times more often than women.
72
A cubic yard of air weighs about 2 pounds at sea level.
31
Aluminum used to be more valuable than gold!
84
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
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The sun is 330,330 times larger than the earth.
75