The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
One barrel of petroleum holds 42 gallons.
20
A cesium atom in an atomic clock beats over nine billion times a second.
43
The average temperature at 40,000 feet above sea level is -60 F.
56
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18