Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The force of a suction cup is calculated using F=AP.
15
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
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
German chemists made a replica of a trophy the size of one molecule.
68
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Pumice is the only rock that floats on water.
14
Aluminum used to be more valuable than gold!
84