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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Most dust particles in your house are made from dead skin!
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A cesium atom in an atomic clock beats over nine billion times a second.
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4.5 pounds of sunlight strike the Earth each day.
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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A ball of glass will bounce higher than a ball made of rubber.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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Aluminum used to be more valuable than gold!
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