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Rubens' Tube reveals sound waves in flames! [Physics]
posted March 28 2013 21:10.16 by Giorgos Lazaridis




AKA standing wave flame tube, the Rubens' tube is an apparatus used by physisits to demonstrate acoustic standing waves. It was first invented by the German physicist Heinrich Rubens in 1905. Sound comes in waves, and a wave is actually areas of low pressure and areas of higher pressure. Streaming one sound through the Rubens' tube visualizes these areas of different pressure. Watch the following video:



[Link: Veritasium]
 
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