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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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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No matter how cold it gets, gasoline will not freeze.
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The only letter not appearing on the Periodic Table is the letter "J".
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In zero gravity, a candle's flame is round and blue.
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Cold water weighs more than hot water.
93
4.5 pounds of sunlight strike the Earth each day.
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Liquid TIDE laundry detergent glows under a blacklight.
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