Wow. This is awesome.
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Wow. This is awesome.

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Woah. #Pyroboard Just WOW! Check out "Pyro Board: 2D Rubens' Tube!" on Youtube!
I want to try roasting marshmallows over one while it plays
A Reubens Plane (pyroboard) used to study standing waves of fire.
This is the coolest thing. A "pyroboard" used to visualize sound in two dimensions, as opposed to the classic Ruben's Tube to visualize a standing wave in one dimension. (Throwback to physics.) The first part of the video is an explanation of how it works (the highest fundamental is the coolest) and then music lights up the board around 3:38.

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The guys at Fysikshow used sound waves to manipulate the fire patterns on this pyroboard, definitely one of the most beautiful things I've seen recently. Veritasaium also made a video about it! https://www.youtube.com/watch?v=2awbKQ2DLRE
Pyroboard by Fysikshow
A mesmerising flame based audio visualiser.
A Pyroboard the controls fire with sound. AMAZING! Thanks @veritasium for this video.