Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
One third of the electricity produced on earth is used to power electric light bulbs!
75
Liquid TIDE laundry detergent glows under a blacklight.
96
Diamonds can be shattered with a hammer.
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