Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
A cesium atom in an atomic clock beats over nine billion times a second.
43
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Your brain is 80% water.
525
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
According to studies, men change their minds two to three times more often than women.
72
Cold water weighs more than hot water.
93