The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The average temperature at 40,000 feet above sea level is -60 F.
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Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
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Nearly 50% of the world's scientists are assigned to military projects.
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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Most liquid laundry detergents are alive with living organisms that help to break down stains!
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German chemists made a replica of a trophy the size of one molecule.
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In zero gravity, a candle's flame is round and blue.
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