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## RE: the lowest natural sound yet detected

 Subject: RE: the lowest natural sound yet detected "Scott Shepard" <> Sat, 20 Sep 2003 07:54:47 -0700
 ```If you define sound as periodic rarefications and compressions of a gas medium, then this is not a sound. What has been detected, over all that distance and time, is electromagnetic radiation. By the same token, the signals traveling through your audio cables are not sound. They are electrical signals ANALOGOUS to a sound event. Takes a transducer such as a microphone or speaker to convert between the two. It's easy to confuse them, I remember some confusion about it coming up in my electroacoustics class in EE school. The point of the story, I think, is that the frequency of the electromagnetic signal detected was such that, if it were a sound, it would be the pitch indicated. Not very precise scientific journalism, calling it a sound. BTW, the speed of light needs to be used instead of the speed of sound in the wavelength calculation. Talk to Stewart Brand and the Long Now folks.. (Google those and see what you get!) Scott Shepard Kuma Sonics m("kumasonics.com","scott"); -----Original Message----- From: Walter Knapp m("mindspring.com]","[wwknapp"); Sent: Friday, September 19, 2003 10:36 AM To: m("yahoogroups.com","naturerecordists"); Subject: Re: [Nature Recordists] the lowest natural sound yet detected Eric V. Schmidt wrote: > Hello again; > > "The ripples are separated by about 35,000 light-years-which produces a > B-flat 57 octaves below middle C." Does this mean that the wavelength or > frequency is 1 per 35,000 light years? That would be a wave length os 1.23 > x 10 to the 19th power. Is that right? That is one low sound I'm not so sure calling it a sound is correct. Since it's traveling through space, at best it's got a very thin gas to travel through. Yes, wavelength of 35,000 light years. Meaning one cycle is going to take a very, very long time to pass us. Since it's probably not traveling at the speed of light, even longer. This goes along with the music piece "As Long as Possible" which is being played in Europe on a Organ. As I remember, the piece was going to take over 600 years to complete playing once. Each note takes years, the rest at the beginning took seven years. PBS had a program bit on it. Walt m("mindspring.com","wwknapp"); Yahoo! Groups Sponsor ADVERTISEMENT click here To unsubscribe from this group, send an email to: m("yahoogroups.com","naturerecordists-unsubscribe"); Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. [Non-text portions of this message have been removed] ________________________________________________________________________ ________________________________________________________________________ ```
 Current Thread the lowest natural sound yet detected, Robin Carter Re: the lowest natural sound yet detected, Eric V. Schmidt Re: the lowest natural sound yet detected, Eric V. Schmidt Re: the lowest natural sound yet detected, Walter Knapp Re: the lowest natural sound yet detected, Eric V. Schmidt Re: the lowest natural sound yet detected, Aaron Ximm RE: the lowest natural sound yet detected, Scott Shepard <= RE: the lowest natural sound yet detected, Dan Dugan Re: the lowest natural sound yet detected, michael fish Re: the lowest natural sound yet detected, Walter Knapp RE: the lowest natural sound yet detected, Scott Shepard Re: the lowest natural sound yet detected, Rich Peet