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Path: utzoo!watmath!watnot!watdcsu!herbie
From: herbie@watdcsu.UUCP (Herb Chong [DCS])
Newsgroups: net.startrek
Subject: Re: Hailing Frequencies
Message-ID: <1471@watdcsu.UUCP>
Date: Wed, 12-Jun-85 22:57:47 EDT
Article-I.D.: watdcsu.1471
Posted: Wed Jun 12 22:57:47 1985
Date-Received: Thu, 13-Jun-85 03:20:23 EDT
References: <297@tilt.UUCP> <16200039@haddock.UUCP> <305@tilt.FUN> <120@sdencore.UUCP> <1562@orca.UUCP>
Reply-To: herbie@watdcsu.UUCP (Herb Chong [DCS])
Organization: U of Waterloo
Lines: 28
Summary: 

In article <1562@orca.UUCP> andrew@orca.UUCP (Andrew Klossner) writes:
>> I read somewhere that there are several "natural" frequencies.
>> One is the vibration frequency of the Hydrogen atom.
>
>They're called natural frequencies because nature emits a good deal of
>noise on these wavelengths.  Therefore these are exactly the
>frequencies that you *don't* want to use for communications.
>
>  -=- Andrew Klossner   (decvax!tektronix!orca!andrew)       [UUCP]
>                        (orca!andrew.tektronix@csnet-relay)  [ARPA]

there is at least one of the hydrogen vibrational frequencies that is
relativey quite.  i think it's the 21 cm band.  anyway, project SETI
used it to send their signals and i think a few others did too.  i
would have to dig through old journals to find out which projects and
if any other frequencies were tried.  BTW, who says that
electromagnetic radiation (radio or light) had to be used?  if subspace
frequencies were in common use at the time, they would be the ones used
as a starting point, and they might be very quiet by comparision.

Herb Chong...

I'm user-friendly -- I don't byte, I nybble....

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