Sand patterns based on frequency and vibration

Janny Wurts Chat Area: General Discussion: Sand patterns based on frequency and vibration
   By john herrmann on Saturday, June 14, 2014 - 11:56 am: Edit Post

this has been floating around facebook a lot lately so thought i would share here. some really neat things happen to the sand as the frequency is increased.

http://youtu.be/wvJAgrUBF4w


   By Annette on Saturday, June 14, 2014 - 05:02 pm: Edit Post

Thanks for the link John, very interesting. I wonder if crop circles are a more complex pattern done in a similar way.


   By Trys on Sunday, June 15, 2014 - 05:00 am: Edit Post

One of the comment has it right. The patterns are caused by standing waves. When the vibrations traveling through the media intersect sometimes they result in the peaks and sometimes troughs and the sand (salt?) aligns to these. Standing waves also explains Bose audio technology.


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