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- Newsgroups: sci.physics
- Path: sparky!uunet!gatech!concert!uvaarpa!murdoch!kelvin.seas.Virginia.EDU!crb7q
- From: crb7q@kelvin.seas.Virginia.EDU (Cameron Randale Bass)
- Subject: Re: can sound waves boil water?
- Message-ID: <1992Dec22.173302.7146@murdoch.acc.Virginia.EDU>
- Sender: usenet@murdoch.acc.Virginia.EDU
- Organization: University of Virginia
- References: <1992Dec22.151439.29874@nuscc.nus.sg>
- Date: Tue, 22 Dec 1992 17:33:02 GMT
- Lines: 23
-
- In article <1992Dec22.151439.29874@nuscc.nus.sg> eng10370@nusunix1.nus.sg (CHEW JOO SIANG) writes:
- >I was thinking of this the other day - we all know that a microwave oven
- >works by resonating the water molecules at its natural frequency - this
- >causes a rise in its temperature. The question is, can we do the same
- >with sound waves - using it to resonate the water molecules. I know that
- >you need incredibly high frequecies to achieve it but is the concept
- >sound theoretically?
-
- a) That is not the way microwaves work. Try "Dielectrics and Waves"
- by Von Hipple, available at research libraries everywhere.
- b) Yes, one can induce boiling and cavitation by sound. Try
- "Cavitation" by Young, available at research libraries everywhere,
- and any treatise on ultrasonics.
- c) Depending on what you mean by 'incredibly high' frequencies
- and 'resonate', your statements above may not be an accurate
- portrayal of the physical circumstances under which this happens.
-
- dale bass
- --
- C. R. Bass crb7q@virginia.edu
- Department of Mechanical,
- Aerospace and Nuclear Engineering
- University of Virginia (804) 924-7926
-