A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
In zero gravity, a candle's flame is round and blue.
16
According to studies, men change their minds two to three times more often than women.
72
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
A ball of glass will bounce higher than a ball made of rubber.
73
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15