A cesium atom in an atomic clock beats over nine billion times a second.
43
The only letter not appearing on the Periodic Table is the letter "J".
180
One third of the electricity produced on earth is used to power electric light bulbs!
75
One cubic foot of gold weighs more than 1,200 pounds!
78
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Scientists aren't sure what color dinosaurs were.
312
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
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55