Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
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In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
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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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A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
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Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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Hot water can freeze faster than cold water.
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Pumice is the only rock that floats on water.
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