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Old 07-04-2017, 08:19 PM
Allen Burgess Allen Burgess is offline
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Join Date: Sep 2011
Posts: 2,135
Originally Posted by telemachus View Post
Hi Allen,

I believe this is the video you're looking for?

The circuit and metal ball set-up was made by Jack, an inventor from Hawaii.
His Youtube channel has other interesting experiments.

That's the one Thank you very much. That's incredible isn't it? I believe it's a tornado effect.
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