Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Cold water weighs more than hot water.
93
Sound at the right vibration can bore holes through a solid object.
134
The force of a suction cup is calculated using F=AP.
15
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
No matter how cold it gets, gasoline will not freeze.
107
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7