Most liquid laundry detergents are alive with living organisms that help to break down stains!
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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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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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One 75-watt bulb gives more light than three 25-watt bulbs.
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The earth is approx. 6,588,000,000,000,000,000 tons.
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In zero gravity, a candle's flame is round and blue.
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