Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!usc!elroy.jpl.nasa.gov!swrinde!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!cbnews!cbnews!military From: dartvax!batcomputer!eacj@uunet.UU.NET (Julian Vrieslander) Newsgroups: sci.military Subject: Re: Offensive use of Sound possible? Message-ID: <1991Jan22.021619.22117@cbnews.att.com> Date: 22 Jan 91 02:16:19 GMT References: <1991Jan21.041118.5204@cbnews.att.com> Sender: military@cbnews.att.com (William B. Thacker) Organization: Cornell Theory Center Lines: 15 Approved: military@att.att.com From: dartvax!batcomputer!eacj@uunet.UU.NET (Julian Vrieslander) I believe that there has indeed been work on techiques for generating human-lethal sound fields. I am not aware of any practical weapons that have come out of this research, and I think this is because there are some substantial obstacles and limitations to the proposed systems. One problem that I recall is that it is difficult or impossible to obtain a beam of acoustic energy that is sufficiently directional so that the personnel operating the weapons are not injured. -- Julian Vrieslander Neurobiology & Behavior, W250 Mudd Hall, Cornell University, Ithaca NY 14853 INTERNET: eacj@theory.tn.cornell.edu BITNET: eacj@crnlthry UUCP: ..cornell!batcomputer!eacj