The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Nylon is made from coal and petroleum.
42
Pumice is the only rock that floats on water.
14
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21