The average temperature at 40,000 feet above sea level is -60 F.
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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.
15
According to studies, men change their minds two to three times more often than women.
72
In zero gravity, a candle's flame is round and blue.
16
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
A 'jiffy' is an actual unit of time for 1/100th of a second!
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