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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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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Nylon is made from coal and petroleum.
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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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Liquid TIDE laundry detergent glows under a blacklight.
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4.5 pounds of sunlight strike the Earth each day.
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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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