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Re: [Phys-l] air pressure question

So the test would be to hold the tube out a car window and see if it picks up pieces of paper at the other end. If not, it's standing waves. Now to find one of these tubes lying around the house somewhere.

Bill



On Jan 26, 2011, at 4:16 PM, William Robertson wrote:

Is it
possible that when it's held outside a car window, you are simply
setting up standing waves in the tube, much like blowing over the top
of a beer bottle?