Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
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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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Nylon is made from coal and petroleum.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
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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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Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
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