A 'jiffy' is an actual unit of time for 1/100th of a second!
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The average temperature at 40,000 feet above sea level is -60 F.
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Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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According to studies, men change their minds two to three times more often than women.
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In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
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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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