Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!uakari.primate.wisc.edu!ginosko!uunet!wiley!rob From: rob@wiley.UUCP (Robert Heiss) Newsgroups: sci.electronics Subject: Re: Sound Amplification by Combustion Keywords: singing flames Message-ID: <5557@wiley.UUCP> Date: 27 Sep 89 00:39:44 GMT References: <11652@cit-vax.caltech.edu> <1625@jato.jpl.nasa.gov> <3344@kitty.uucp>Reply-To: rob@wiley.UUCP (Robert Heiss) Organization: TRW Inc., Redondo Beach, CA Lines: 12 In article michael@xanadu.UUCP (Michael McClary) writes: >Want it really loud? Add a permanent magnet with the field at right >angles to the gap between the electrodes. This makes an MHD motor >that accellerates the gas at right angles to the current and the >magnetic field. Flat response from DC to low radio frequencies if >you do it right. (Too much combustion product to use to pressurize >your house, though. B-) ) Did the setup without the permanent magnet depend on the earth's magnetic field in order to make sound? Robert Heiss uunet!wiley!rob