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RE: Nukes in Space...
If I recall the space shuttle incident, they had some expensive item they
were going to reel in. With the mass of the item and the very long cabling
layed out, they broke the cable when they tried to reel it in. The cable
broke at the cable reel end because this is where the strain is the
greatest. The amount of strain/inch is greatest at the cable reel end due
to this being the point where the greatest amount of mass must be moved.
The function dStrain/dLength increases as you get closer to the cable real
because the function of mass on the other side of the strain point is also
increasing. The strain at the other end of the cable would be less due to
the mass of the cable being on the other side of the stress point.
And finally things at rest desire to stay at rest. Perhaps if they tried to
accelerate the mass slower, the cable may not have failed.
Perfect topic for high school physics...
Glen Vickers
> -----Original Message-----
> From: Raymond A. Hoover [SMTP:rayhoover@HOTMAIL.COM]
> Sent: Wednesday, December 05, 2001 12:23 PM
> To: neildm@ID.DOE.GOV; ncohen12@HOME.COM; radsafe@list.vanderbilt.edu
> Subject: RE: Nukes in Space...
>
> You are correct. For this to work, fibers would have to be about 100
> kilometers long and without a single flaw. The concept was based on the
> tensile strength of flawless fibers.
>
>
> >From: "Neil, David M" <neildm@ID.DOE.GOV>
> >Reply-To: "Neil, David M" <neildm@ID.DOE.GOV>
> >To: "'Norman Cohen'" <ncohen12@HOME.COM>, radsafe
> ><radsafe@list.vanderbilt.edu>
> >Subject: RE: Nukes in Space...
> >Date: Tue, 4 Dec 2001 07:44:02 -0700
> >
> >If memory serves, and I may be misrecalling it, that concept fails on the
> >basis of tensile strength of the materials. Also, one of the Shuttle
> >flights
> >did an experiment to some other purpose, dangling an instrument package
> on
> >a
> >cable, and had to abort the experiment and jettison the equipment due to
> an
> >unexpected effect. I don't recall details on that one.
> >
> >Dave Neil neildm@id.doe.gov
> >
> >
> >
> >
> >-----Original Message-----
> >From: Norman Cohen [mailto:ncohen12@HOME.COM]
> >Sent: Monday, December 03, 2001 8:33 PM
> >To: radsafe
> >Subject: Re: Nukes in Space...
> >
> >
> >Hi Steve,
> >the Magazine was Analog Science Fiction and Science Fact. Be accurate.
> >
> >I wasn't saying we could do this right now, it was just an idea. In fact,
> I
> >posted the same idea on the old radsafe list. I don't recall that you
> >chopped
> >my head off back then. I recall that I was asked if I had any plan for
> >disposing of nuke waste. Thats the best plan I had then and its the best
> >I've
> >got now. Don't like it, just ignore it and my postings.
> >
> >The idea of an equatorial elevator system is that rockets would not be
> >used.
> >It was many moons ago that I read that article or story, so details are
> >hazy.
> >
> >Speaking about starving, you know I am kinda hungry. Gonna go get me a
> >bagel.
> >
> >Peace
> >Norm
> >
> >Steve Frantz wrote:
> >
> > > I try to resist answering, but this is too ridiculous...
> > >
> > > Norm Cohan writes - - -
> > > I'm Ok with nuclear powered space craft as long as they are
> > > launched in such a way (like from the space station) that there
> > > is no chance of their falling back to earth.
> > > End quote - - -
> > >
> > > And exactly how does the plutonium fuel get to the space station
> > > in the first place? By rocket.
> > >
> > > Norm Cohen writes later in the same posting - -
> > > I suggested waiting until we had the techology necessary to
> > > safely rocket the waste into the sun via an equator elevator
> > > system which would lift the waste into orbit, and then oone
> > > could send it into the sun. (picked this idea up from an article
> > > years ago in Analog magazine).
> > > End quote - - -
> > >
> > > I read that SCIENCE FICTION story at the time and the author
> > > explained how it was impossible _even in theory_ to build
> > > anything like that. As long as you draw your science from Analog
> > > magazine, you must expect some ridicule.
> > >
> > > Besides, why is the magical elevator safer than rockets? The
> > > point of the story was that it was cheaper.
> > >
> > > Sending nuclear waste to the sun is an absurd idea for many,
> > > many reasons that I won't go into; unless someone wants to start
> > > a thread on it.
> > >
> > > Now, back to starving the stray dog and hoping he goes
> > > elsewhere.
> > >
> > > Stephen Frantz
> > > sfrantz@yahoo.com
> > >
> > > __________________________________________________
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> > > http://shopping.yahoo.com
> > >
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> >--
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> >
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