One 75-watt bulb gives more light than three 25-watt bulbs.
57
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9