A microscopic look at why the world is running out of sand
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Is the World Really Running Out of Sand?
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Gold isn’t rare. So why is it valuable?
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Why The World Is Running Out Of Sand
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50,000,000x Magnification
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The world is poorly designed. But copying nature helps.
13:08
We’re Running Out of Sand (and It’s a Huge Problem)
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Amazing Microscopic World! Common Objects Under The Microscope || HOME EXPERIMENTS
9:57