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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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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Sound travels about 4 times faster in water than in air.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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If the chemical sodium is dropped into water it will immediately and violently explode.
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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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One 75-watt bulb gives more light than three 25-watt bulbs.
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