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Article #745Re: Whats wrong with this CIRCUIT (was: Tethered Satellites)
From: David Knapp
Date: Wed, 05 Aug 1992 15:07
Date: Wed, 05 Aug 1992 15:07
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2123 bytes
In article <l7ukasINNaem@pollux.usc.edu> srobiner@pollux.usc.edu (Steven Robiner) writes:
>
>Excuse me, but isn't something missing from this "Tethered Satellite"
>experiment? The shuttle is at one end, and the satellite is at the
>other, right? But that's an open circuit, so where's the load
>joining the ends of this 'generator.'?
A resistor of value infinity between the satellite and the shuttle.
>If the tether has a return line for the power, won't Earth's magnetic
>field induce a current in that line too? If so, then any return
>current would be negated by this induction. So how's this
>thing supposed to work?
There isn't a return line for "the power".
Seeing as how the entire system is flying through a plasma, and in a good
vacuum, they could just put a hot cathode on one side and spray electrons
off.
But who said they were going to use this as a power source? A few microamps
from just field emission would confirm all they need to know.
>
>=steve=
>
>Conspiracy Theory:
>------------------
>The whole thing is Top-Secret high-tech fishing trip: just stick
>a satellite out on a long string and see if any 'UFO's bite. ;)
It's certiany good to have at least one consipiracy theory per governmental
action.
--
David Knapp University of Colorado, Boulder
Highly Opinionated, Aging and knapp@spot.colorado.edu
Perpetual Student of Chemistry and Physics.
Write me for an argument on your favorite subject.
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Path: arc1-ca.pugleaf.net!sparky!uunet!europa.asd.contel.com!darwin.sura.net!mips!sdd.hp.com!uakari.primate.wisc.edu!ames!agate!boulder!ucsu!spot.Colorado.EDU!knapp From: knapp@spot.Colorado.EDU (David Knapp) Newsgroups: sci.physics Subject: Re: Whats wrong with this CIRCUIT (was: Tethered Satellites) Message-ID: <1992Aug5.150757.27041@ucsu.Colorado.EDU> Date: 5 Aug 92 15:07:57 GMT References: <l7ukasINNaem@pollux.usc.edu> Sender: news@ucsu.Colorado.EDU (USENET News System) Organization: University of Colorado, Boulder Lines: 45 Nntp-Posting-Host: spot.colorado.edu