Pumice is the only rock that floats on water.
14
A ball of glass will bounce higher than a ball made of rubber.
73
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
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
The average home creates more pollution than does the average car.
33