During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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A 'jiffy' is an actual unit of time for 1/100th of a second!
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If the chemical sodium is dropped into water it will immediately and violently explode.
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In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
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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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Most dust particles in your house come from dead skin.
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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A cubic yard of air weighs about 2 pounds at sea level.
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