One 75-watt bulb gives more light than three 25-watt bulbs.
57
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
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
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Pumice is the only rock that floats on water.
14
A ball of glass will bounce higher than a ball made of rubber.
73
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38