Sound travels fifteen times faster through steel than through air.
134
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Diamonds can be shattered with a hammer.
-104
Cold water weighs more than hot water.
93
Sound at the right vibration can bore holes through a solid object.
134
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Neanderthal man had a brain capacity 100cc larger than modern man's.
50