Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Most dust particles in your house are made from dead skin!
67
Sound at the right vibration can bore holes through a solid object.
134
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
The storage capacity of human brain exceeds 4 Terrabytes.
140
Hot water can freeze faster than cold water.
181
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9