Sporting events, cruises, expensive restaurants… they don’t allow you to bring liquors in, but sealed water bottle, they do. And here is the trick.

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Another cool TEDTalks’ session, this time by the mathemagician Arthur Benjamin.

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Creating the illusion of a static flow of water using sound. Of course this isn’t my idea and plenty more refined examples already exist.

I tried this same experiment years ago but using a strobe light, but it’s harsh on the eyes after a while and hard to video successfully. It only dawned on me shortly before making this that for video purposes, no strobe light is required. This is because the frame rate and shutter of the camera is doing a similar job to the strobe.

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Is this gravitationally compatible?

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If you really cannot see it, click this link.

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