The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The bark of an older redwood tree is fireproof.
65
Sound at the right vibration can bore holes through a solid object.
134
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Diamonds can be shattered with a hammer.
-104
For every gallon of sea water, you get more than a quarter pound of salt.
45
Your brain is 80% water.
525