A cesium atom in an atomic clock beats over nine billion times a second.
43
Nylon is made from coal and petroleum.
42
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
One ragweed plant can release as many as one billion grains of pollen!
51
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
Most dust particles in your house are made from dead skin!
67
The average temperature at 40,000 feet above sea level is -60 F.
56
Scientists in Germany have developed a candy that doesn't cause cavities.
11