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- Path: sparky!uunet!news.larc.nasa.gov!grissom.larc.nasa.gov!kludge
- From: kludge@grissom.larc.nasa.gov (Scott Dorsey)
- Newsgroups: talk.bizarre
- Subject: Re: short shameful reality (was Re: How to kill chickens with your computer...)
- Date: 16 Nov 1992 20:26:04 GMT
- Organization: NASA Langley Research Center and Reptile Farm
- Lines: 21
- Message-ID: <1e904tINNmut@rave.larc.nasa.gov>
- References: <1992Nov13.134921.1730@guvax.acc.georgetown.edu> <1992Nov13.222355.28335@tc.cornell.edu> <1992Nov14.220646.19477@walter.cray.com>
- NNTP-Posting-Host: grissom.larc.nasa.gov
-
- In article <1992Nov14.220646.19477@walter.cray.com> jcarroll@ferris.cray.com (Jeff Carroll) writes:
- >
- >The resonant frequency of the longest string on a piano is much higher
- >than 7 Hz.
- >
- >The fundamental resonant frequency of a sousaphone with all three valves
- >pressed is considerably higher than 7 Hz.
-
- There are a few pipe organs out there with some pipes that have a 16 Hz
- fundamental, but that's about as low as you can really go with any instrument
- that is not electronically amplified. Obviously to generate that low a note
- without a very large resonance chamber is difficult.
-
- The 16 Hz note isn't really audible, but it's easily felt. It's definitely
- a strange sensation. Lower frequencies at louder volumes cause nausea, as
- a few electric bass players have found. (Incidentally some bass amps don't
- reproduce the fundamental, but primarily reinforce the second harmonic of
- many of the lower notes, but that's another story).
-
- If you want to kill birds, then, I recommend the HP 200CD signal generator.
- --scott
-