[meteorite-list] seti

From: Dawn & Gerald Flaherty <grf2_at_meteoritecentral.com>
Date: Tue Nov 15 18:31:03 2005
Message-ID: <002901c5ea3c$9ee4f6b0$0502a8c0_at_GerryLaptop>

Not if we've "just begun"! and even Albert E the great thought as much in
the twilight of his life(just begun that is)
Jerry Flaherty
----- Original Message -----
From: "Neil Caliva" <ncaliva_at_hotmail.com>
To: <meteorite-list_at_meteoritecentral.com>
Sent: Monday, November 14, 2005 11:25 PM
Subject: Re: [meteorite-list] seti


> Thanks for all the emails and links. It seems like such a waste to be the
> only intelligent life in the universe, if thats so.
>
> >From: "Sterling K. Webb" <kelly_at_bhil.com>
> >To: Neil Caliva <ncaliva_at_hotmail.com>,
> > meteorite-list_at_meteoritecentral.com, Darren Garrison
> ><cynapse_at_charter.net>, Jonathan Gore <jonathan525@earthlink.net>
> >Subject: Re: [meteorite-list] seti
> >Date: Mon, 14 Nov 2005 01:06:42 -0600
> >
> >Hi,
> >
> >
> > There is a huge difference between
> >detecting and discriminating an INDIVIDUAL
> >radio signal from the Earth at interstellar
> >distances on the one hand and merely
> >detecting the totality of the Earth's
> >radio signals at interstellar distances,
> >on the other.
> >
> > Surrounding the Earth is a shell of
> >EM transmissions out to a radius of 94
> >light years. At the outer edge of that
> >shell is Marconi's transmission of the
> >letter "S" in 1901. Faint. But at radii
> >of 84 light years and again at 57 light
> >years, quantum leaps in intensity occur.
> >(That's the onset of commercial radio
> >and commercial television respectively.)
> >
> > The TOTAL radio emissions of the Earth
> >are TWICE AS BRIGHT AS THE SUN. Every radio
> >astronomer within that inner 100 light year
> >sphere (if there ARE any radio astronomers
> >"out there") is confronted with the paradox
> >of a normal type G star which has an optically
> >invisible companion which has twice the
> >luminosity in the radio spectrum as the
> >visible star! Studies of the motion of the
> >"invisible companion" would show it to be
> >in orbit around the normal star.
> >
> > There is only one possible explanation
> >of an optico-radio binary star. That is, that
> >the normal star has a planet which is SCREAMING
> >its head off in the radio spectrum! And it's
> >only getting noisier with every passing year,
> >louder and louder! As for directed transmissions,
> >we already have interplanetary radar signals
> >that are 10,000,000,000 times brighter than
> >the Sun!
> >
> > As an interstellar neighbor, the Earth is
> >kind of like that guy on the subway toting
> >the 300 pound ghetto blaster! If you have any
> >hope that the aliens haven't noticed us yet,
> >you can forget all about them.
> >
> > Which is why I find the beautiful dream of
> >SETI to be just that: a beautiful dream. A Kardashev
> >Level Two civilization (one which utlizes the full
> >energy resources of an entire solar system) should
> >be roughly the radio luminosity of a QUASAR! It
> >would be "visible" in the EM spectrum at 100,000
> >light years distant (if the civilization survived
> >for that long).
> >
> > In 300 to 500 years, WE will (I hope) be a
> >fledging Kardashev Level Two civilization. There
> >will be millions of powerful comet-hunting radars
> >in the Kuiper Belt and the Inner Oort Cloud, billions
> >of radar beacons on every rock in the system,
> >trillions of TV channels (how many re-runs of the
> >ancient classics like The Brady Bunch?), and an
> >inconceivable number of interplanetary cell phones
> >(most of them on hold and playing space elevator
> >music). Our solar system will probably be the
> >brightest radio source in the Milky Way Galaxy.
> >
> > If there are any aliens out there, you know,
> >great wise space-traveling advanced aliens, WHERE
> >are their home systems and WHY are there no bright
> >artificial radio sources? If there is an interstellar
> >civilization or many such, you shouldn't be able
> >to point a radio detector to the heavens without
> >having your ears blown off. We should be awash in
> >a cacophony of re-runs of the Arcturian "I Love
> >Lucy" or the Tau Ceti "Milton Berle."
> >
> > I say this as a person who, for many years,
> >DONATED more money to SETI than I spent on, say,
> >buying meteorites, or even books, so I was not
> >without hope in that dream. But I have concluded
> >that it was just that... a dream.
> >
> >
> >Sterling K. Webb
> >-----------------------------------------------
> >Neil Caliva wrote:
> >
> > > Hi List,
> > >
> > > How far could our EM signals generated by humans be detected?
> > >
> > > Sorry if this is off topic!!!
> > >
> > > -NC
> >
> >
>
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Received on Tue 15 Nov 2005 06:30:52 PM PST