Tech It Out: How to make a water drop dance?

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Introducing a magic dancer – a drop of water. There is no force around to contain the water drop, which is just falling freely. Chinese scientists proved that a drop of water can dance; all it needs is the right stage. You would think a drop of water should really make a rebound like this. That’s because, according to Newton’s law of impact, if an object hits a solid surface vertically, it should bounce back.

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