Rubens Tube works by pushing gas down one side of a cylinder and sound down another side of the same cylinder. The top of the cynder is lit with flames and then a frequency generated by the speaker causes different pressure variations down the tube causing the flames to change. It’s a great video to watch.
Via: TechEBlog
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{ 2 comments… read them below or add one }
how do u build the rubens tube?
I believe you just force gas down the tube with holes in and then change the frequency of the device that pushes the gas down and then light it all up. I wouldnt recommend it though