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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The earth is approx. 6,588,000,000,000,000,000 tons.
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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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Hot water can freeze faster than cold water.
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Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
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Indoor pollution is 10 times more toxic than outdoor pollution.
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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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