The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
No matter how cold it gets, gasoline will not freeze.
107
The sun is 330,330 times larger than the earth.
75
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75