Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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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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Cold water weighs more than hot water.
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The average temperature at 40,000 feet above sea level is -60 F.
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Hot water can freeze faster than cold water.
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The smell of freshly cut grass is actually a plant distress call.
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