Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
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A single speck of dust is half way in size between a subatomic particle and the Earth.
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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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Research indicates that plants grow healthier when they are stroked.
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In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
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There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
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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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