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Imagine you're in the desert. You're lost. You've been walking for hours. You've run out of water. On the horizon, you see a giant, shimmering puddle of water. "Yippeeeeeeeeee", you shout. You're s...
Do you know there are very small organisms around you which are so tiny that it is not possible to see them with your naked eye?...
Well… Yes. Your stomach can dissolve pieces of metal if you have ever swallowed any. But hey.. never try to test that out now. Don’t worry scientists have already done that for you, they have alre...