The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
A ball of glass will bounce higher than a ball made of rubber.
73
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
Research indicates that plants grow healthier when they are stroked.
173
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7