A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
For every gallon of sea water, you get more than a quarter pound of salt.
45
No matter how cold it gets, gasoline will not freeze.
107
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