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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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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Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
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In zero gravity, a candle's flame is round and blue.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
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Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
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Sound travels fifteen times faster through steel than through air.
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Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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