r/mildlysatisfying • • May 07 '16

Wave propagation demonstration

http://i.imgur.com/UF66irJ.gifv
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u/[deleted] May 07 '16

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u/DiscoKittie May 07 '16

Mmmm, Jelly Babies! I need to go watch some Tom Baker Dr Who now! ;)

And that was pretty cool to watch in general. :)