The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The force of a suction cup is calculated using F=AP.
15
Research indicates that plants grow healthier when they are stroked.
173
In zero gravity, a candle's flame is round and blue.
16
Indoor pollution is 10 times more toxic than outdoor pollution.
62
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51