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Flight attendants struggle every time they close the aircraft door—why not design it as an electric
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The incredible ball-splitting paradox! How can a piece of chocolate be eaten infinitely? What's the
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Interesting scientific phenomenon: colored drops on glass will "automatically classify", do you know
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Scientists were astonished to discover that Betelgeuse has swallowed its companion star!
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How do railway tracks "beat the heat" in scorching weather? Watch railway workers perform their amaz
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curious: curious
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How extraordinary is the body structure of shipworms, and how do they manage to destroy wood?