Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
No matter how cold it gets, gasoline will not freeze.
107
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
One cubic foot of gold weighs more than 1,200 pounds!
78