The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Pumice is the only rock that floats on water.
14
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Iron weighs more after it rusts.
16
In zero gravity, a candle's flame is round and blue.
16