The "I don't know what this is, but it's cool" thread

[DJSigma]

To start things off (turn your speakers/headphones down): -

http://www.youtube.com/watch?v=Oz53w_k_j_A

[Jumanji]

Babble Fish translates the video's title as:
Sound is visible on the griddle? Scientific magazine of art rainbow color compilation adult


From the video's comments:

@puneetchhikara that's a metal table....and that is colored sand...so when it vibrates creates a pattern...

alcool24hh 2 hours ago

Pretty sure this is an example of standing waves. Vibrations of different frequencies are produced and form distinct knot points where the table ideally does not vibrate, these are the points the sand stays at once it reaches them.

bierjulius 4 hours ago