Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
No matter how cold it gets, gasoline will not freeze.
107
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
A cubic yard of air weighs about 2 pounds at sea level.
31
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75