Sand pendulum drawing lissajous patterns.

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Sandpendel
Péndulo de arena
Pendule de sable
Pendulum pasir
Piaskowe wahadło
Песочный маятник

Satisfying, Satisfying Video, Oddly Satisfying, The Most Satisfying, The Most Oddly Satisfying

Music
Go Not Gently by Audionautix is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Artist: http://audionautix.com/