Iron weighs more after it rusts.
68
Nylon is made from coal and petroleum.
42
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Your brain is 80% water.
525
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Scientists are now able to grow 'beating' heart tissue in a lab!
162