The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
In zero gravity, a candle's flame is round and blue.
16
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
A cubic yard of air weighs about 2 pounds at sea level.
31
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Iron weighs more after it rusts.
68