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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German chemists made a replica of a trophy the size of one molecule.
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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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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Aluminum used to be more valuable than gold!
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