Flame Tube (Ruben's Tube) Feature Summary

Type:
Physics in Your World
Title:
Flame Tube
Description:
In the classic Ruben's tube demonstration, the tube containing the Bunsen burner gas has a speaker at each end that emits a pure tone. The tones have the same frequency and are in phase. The frequency of the tones is selected to set up a large standing wave inside the tube, and the resulting pressure distribution produces the pattern of flames. Read more on standing waves here.
Image:
image credit: Jim Krider, Physics Instructional Resource Team, Arizona State University; <a href="http://www.physicstogo.org/images/features/flames_large.jpg" target="_blank">larger image</a>
image credit: Jim Krider, Physics Instructional Resource Team, Arizona State University; larger image
Image URL:
http://www.compadre.org/Informal/images/features/flames_large.jpg
Featured:
April 12, 2011 - April 25, 2011