Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
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Nylon is made from coal and petroleum.
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A 'jiffy' is an actual unit of time for 1/100th of a second!
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
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The average temperature at 40,000 feet above sea level is -60 F.
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