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Technology has always found its greatest consumer in a
nation's war and defense efforts. Since the last attempts at a
"Star Wars" defense system, has technology changed
considerably enough to make the latest Missile Defense
initiatives more successful? Can such an application of
science be successful? Is a militarized space inevitable,
necessary or impossible?
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(12872 previous messages)
rshow55
- 07:44am Jul 7, 2003 EST (#
12873 of 12874) Can we do a better job of finding
truth? YES. Click "rshow55" for some things Lchic and I have
done and worked for on this thread.
A few years ago, Boeing proposed a faster passenger
jet - and published a beautiful picture of it. That's been
revised - and the odds are that it will be some time before
the market can justify radical changes in airplane design to
move much closer to Mach 1 or beyond it. The key to the story,
I believe - is that Boeing sold - and to some degree
sold itself - an aesthetically beautiful picture that
was not consistent with all the physical relations that a
passenger plane has to have.
3289-91 http://www.mrshowalter.net/a_new_3000s/3288new.htm
http://www.economist.com/science/displayStory.cfm?story_id=1247382
It now bears little resemblance to the
sketches released when Boeing launched the concept a year
ago, in order to disguise its retreat from the “super-jumbo”
market. Those sketches owed more to public relations than to
aerodynamics. The new shape should actually stay airborne.
3313 http://www.mrshowalter.net/a_new_3000s/3310.htm
A difficulty with military contracting is that, far too
often, "sketches that owe more to public relations than to
engineering" - often very beautiful sketches - are the
basis of promises made to military officers. These military
officers accept these designs in good faith, and
enthusiastically sell them. The history of military
contracting after the 1960's is full of these stories -
because engineering firms have been asked, again and again,
to do jobs for which they've lacked basic
analytical tools. That's a problem that the government
used to be aware of. I was assigned to solve it - or find ways
of making progress about it. The issue involves circumstances
where multiple physical effects have to be accounted in the
same equations, in terms representing the same time and space.
Military officers are "sold a bill of goods" by
engineer-salesmen -- and so are Senators and Members of
Congress.
( The military officers cannot be expected
to be fully competent engineers by commercial engineering
standards any more than commercial engineers could be
expected to be good military oficers - and the commercial
engineers have been engaged, too long, in a competition for
who can make the most imaginative promises - and who can
bluff with greatest facility -- a competition on which huge
money flows rests.)
A lot of problems have built up, and a lot of people, for a
lot of reasons, have shaded some inconvenient truths.
4016 http://www.mrshowalter.net/a_new_4000s/4015_4016.htm
There are plenty of laws of physics that haven't changed
since Wright's time -- and they constrain what can actually be
done. The people in airplane design have had a good while
since the Boeing 707 was the first commercially successful
near-sonic jet airplane. There's been plenty of progress since
- with plenty of work from the best mechanical engineers the
world could provide. . . . (Current commercial planes) fly at
subsonic speeds for basic reasons.
( Sometimes key facts don't change - won't change for all
time. )
Clarence L. "Kelly" Johnson, Edwin Teller - and a whole
bunch of other technically competent people have known that
for a LONG time. Competent, honest technical people still do.
We need to to better at the basic level of
Be sure you're right . . . then go ahead.
and that means better simulation - done reliably.
There's a lot of improvement possible now - compared to years
ago - but the improvements possible now are not operational.
That has human consequences. We're still struggling
with the consequences of errors of simulation and judgement
made long ago - including some key ones in the 1950's and 60's
about energy.
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