Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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The smell of freshly cut grass is actually a plant distress call.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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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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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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The force of a suction cup is calculated using F=AP.
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