Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
The force of a suction cup is calculated using F=AP.
15
Indoor pollution is 10 times more toxic than outdoor pollution.
62
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
German chemists made a replica of a trophy the size of one molecule.
68
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
A cubic yard of air weighs about 2 pounds at sea level.
31
The average temperature at 40,000 feet above sea level is -60 F.
56