Pumice is the only rock that floats on water.
14
Sound at the right vibration can bore holes through a solid object.
134
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
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
Out of all the senses, smell is most closely linked to memory.
146
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
One barrel of petroleum holds 42 gallons.
20
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9