Levitating Water Drops

September 30, 2009 · Filed Under Science Tricks 
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In this science optical illusion, strobe lights are used to illuminate streams of water so that they appear to be chains of water droplets moving. Note that the water is constantly flowing down, even when the droplets appear to be going up. You assume that it is the “same” drop going down/up/hovering but it isn’t. Your brain just groups it that way.

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