Pyro Board – 2D Rubens’ Tube
We have all seen what a Ruben’s Tube looks like, check out the Pyro Board which is a 2D version of that. It has two speakers instead of the normal one. The results are impressive when a sign wave is pumped into the board but when some music is played the effects are very memorizing. I think this is the modern version of watching a campfire.  Thanks for the