Nylon is made from coal and petroleum.
42
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Sound travels fifteen times faster through steel than through air.
134