Nylon is made from coal and petroleum.
42
Hot water can freeze faster than cold water.
181
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Sound at the right vibration can bore holes through a solid object.
134
One third of the electricity produced on earth is used to power electric light bulbs!
75