Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
In zero gravity, a candle's flame is round and blue.
16
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
No matter how cold it gets, gasoline will not freeze.
107
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9