Airports that are at higher altitudes require a longer airstrip due to lower air density.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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One ragweed plant can release as many as one billion grains of pollen!
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Sound travels about 4 times faster in water than in air.
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One gallon of used motor oil can ruin approximately one million gallons of fresh water!
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