Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Billions of neutrinos pass unnoticed through your body every second.
6
4.5 pounds of sunlight strike the Earth each day.
27
Pumice is the only rock that floats on water.
14
Aluminum used to be more valuable than gold!
84
Hot water can freeze faster than cold water.
181
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
For every gallon of sea water, you get more than a quarter pound of salt.
45