In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Nylon is made from coal and petroleum.
42
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
Liquid TIDE laundry detergent glows under a blacklight.
96
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
In zero gravity, a candle's flame is round and blue.
16
Most dust particles in your house are made from dead skin!
67