Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
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
One third of the electricity produced on earth is used to power electric light bulbs!
75
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 single speck of dust is half way in size between a subatomic particle and the Earth.
15
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101