Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Most dust particles in your house come from dead skin.
48
Sound travels fifteen times faster through steel than through air.
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