home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.space
- Path: sparky!uunet!usc!zaphod.mps.ohio-state.edu!darwin.sura.net!udel!rochester!cantaloupe.srv.cs.cmu.edu!crabapple.srv.cs.cmu.edu!roberts@cmr.ncsl.nist.gov
- From: roberts@cmr.ncsl.nist.gov (John Roberts)
- Subject: misc
- Message-ID: <BznDr9.7u3.1@cs.cmu.edu>
- X-Added: Forwarded by Space Digest
- Sender: news+@cs.cmu.edu
- Organization: National Institute of Standards and Technology formerly National Bureau of Standards
- Original-Sender: isu@VACATION.VENARI.CS.CMU.EDU
- Distribution: sci
- Date: Tue, 22 Dec 1992 06:18:39 GMT
- Approved: bboard-news_gateway
- Lines: 80
-
-
- -From: wingo%cspara.decnet@Fedex.Msfc.Nasa.Gov
- -Subject: Re: Justification for the Space Program
- -Date: 21 Dec 92 04:32:00 GMT
- -Organization: University of Houston
-
- Just a few random comments, not directly relating to the conclusion of the
- original post:
-
- -I know
- -what fission is and one of the largest plants of that type are within a few
- -miles of my present location. Unfortunately the contractor scum that built
- -it for TVA's nuclear program did such a poor job that it took over a billion
- -dollars just to straighten out all of the defects (Browns Ferry).
-
- Isn't that the one those idiots set fire to while checking for air leaks
- with a candle?
-
- -I agree that
- -fission is a nice, relatively safe form of energy production. It is also
- -very expensive. Each plant costs somewhere in the 5-8 billion dollar range.
-
- Part of that is bad management and nonstandard designs, and part is from
- frivolous lawsuits by misguided "environmental" groups and others delaying
- the approval process. The nuclear power industry could be managed much better
- than it has been in the US - France is a better example of what's possible.
- There is an ongoing effort to improve the safety and standardization of
- new fission power reactor designs in the US. Maybe it will come along in time
- to save the Eastern forests from destruction by acid rain.
-
- -The answer that a third world person would give you to that is that the
- -west does not provide the right type of help. It is ok to feed people
- -overseas. It does much to make Westerners feel good about themselves and
- -how they are helping the starving masses. What is lacking is teaching those
- -people how to help themeselves.
-
- -Give me a fish and I eat for today
- -Teach me to fish and I eat for a lifetime
-
- There's at least one charity you can give money to that will finance volunteers
- who go to third world countries and teach the people how to generate real
- wealth.
-
- -What about copper? Yes yes I know that we can substitute aluminum for copper in
- -most cases but aluminum is only 90 as efficient as copper at carrying electricty
- -This translates into a 10% decrease in the net efficiency in most of our
- -power generating and distribution system. If copper were cheaper (more abundant)
- -then we could save billions per year just in this area.
-
- Given the high density and mechanical properties of copper, they might elect
- to continue using aluminum for long-distance transport even if the prices
- of the metals were the same. Copper-plated conductors might be an option.
-
- -What about stainless steel? This has been commented on here before but I'm
- -gonna bring it back up. If the cost of stainless were 1/100 of what it is
- -today, we could build bridges with it that would last for centuries rather
- -than for decades. Since the last round of this discussion, I have spoke with
- -Civil engineers (I am an ASCE (American Society of Civil Engineers) member)
- -and they would love to have stainless. The more difficult workability would
- -more than be offset by the lower operating costs that such bridges entail.
-
- Why don't you and Gary duke it out over this one, and the rest of us will
- wait on the sidelines for the outcome? :-)
-
- -Most
- -bridges that are steel, such as the Golden Gate must be constantly painted and
- -buffed and treated to stop or slow down corrosion.
-
- I've heard that's literally true for the Golden Gate Bridge - they paint it
- from one end to the other, then immediately start over.
-
- -Look around at your dead nuclear power program. Look around.
-
- It's not as dead as it was a few years ago.
-
- -Dennis, University of Alabama in Huntsville
-
- John Roberts
- roberts@cmr.ncsl.nist.gov
-
-