The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
The best diamonds are colored blue-white.
80
Since 1982, a radio frequency emanating from Russia has been broadcasting a buzzer-like sound and, periodically, an unknown voice reads orders, names, and numbers. No one knows where exactly it is coming from or what it means.
13
The average IQ is 100, while 140 is the beginning of genius IQ.
140
If left alone, 70% of birthmarks gradually fade away.
193
Americans are responsible for generating roughly 20% percent of the garbage in the world.
29
In a year approximately 900 million trees are cut down to make the raw materials needed for American pulp mills and paper.
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