New York Times on the Web Forums Science
Russian military leaders have expressed concern about US plans
for a national missile defense system. Will defense technology be
limited by possibilities for a strategic imbalance? Is this just SDI
all over again?
(7251 previous messages)
mikewiz50
- 06:21pm Jul 19, 2001 EST (#7252
of 7257)
The NMD System is nothing less than an attempt to further
dominate and exploit the world, to protect "our way of life"
grounded in greed and arrogance. To control space equates to utter
domination of the earth--the goal of the U.S. empire.
It is, moreover, another way to bankrupt this nation as it takes
needed funds from programs that would better benefit all of society,
not just corporate America.
Further still, it pushes the world closer to nuclear, biological,
and chemical annihilation. This nation is the most arrogant and evil
nation in history. It already initiated three nuclear wars (Japan,
Iraq and the Balkans) and is willing to risk another by its absolute
contempt for and disregard of the ABM Treaty and other arms control
agreements.
When will the people of this nation rise up and stand against
this evil? Stand against corporate greed, corporate crime with no
consequence, lies, betrayel, mass murder of the innocent, infernal
bombings that seem unending, and have yet to bring into being a
single democratic government respectful of human rights? Stand
against the lunatic lunge for world domination that unrelentlessly
threatens nuclear war while continuously polluting the planet with
nuclear rubish which has caused countless victims of cancer?
Let us not forget that depleted uranium (DU), produced by the
U.S., is sold or freely distributed to over fifty "friendly"
nations. It has has already killed more people than the Hiroshima
and Nagasaki bombs. Is it not time for the decent people of this
nation to stand and say ENOUGH! to this race to oblivion which has
raged for fifty-six years now? And we dare point to Hitler as the
most evil of all, while the dead, maimed, and dying together, make
for a holocaust that drawfs crimes of the Nazi's. The silence of the
masses is deafening. Will it end before it is too late?
lunarchick
- 07:15pm Jul 19, 2001 EST (#7253
of 7257) lunarchick@www.com
'We'll get the kids to swim off first, then let the crocodile
swim behind them, give 'em speed, just sort of a fun thing to
entertain them.' Darwin. So that's how the Aussie's train!
rshowalter
- 07:46pm Jul 19, 2001 EST (#7254
of 7257) Robert Showalter
showalte@macc.wisc.edu
Diplomatically, the news reports indicate that the Bush
administration has had a bad day.
But technically, the results may be even more serious.
rshowalter
- 07:52pm Jul 19, 2001 EST (#7255
of 7257) Robert Showalter
showalte@macc.wisc.edu
Missile Interception Test Was Hit-and-Miss, Pentagon
Reports by JAMES DAO http://www.nytimes.com/2001/07/19/national/19RADA.html
"WASHINGTON, July 18 — A prototype missile defense radar had a
malfunction after a successful interception test on Saturday and
was unable to confirm that a mock warhead had been destroyed
, the Pentagon said today.
"The prototype being developed for tracking long-range
missiles by using finely focused, or X-band, radar waves is intended
to help guide intercepting missiles toward targets and assist in
differentiating warheads from decoys, Pentagon officials say.
Coment: X band radars use cm waves - radars using
these wavelengths were developed and used in WWII -- and their
properties are well known
"The officials said the prototype X- band radar stationed on
Kwajalein atoll in the Marshall Islands successfully performed those
tasks in the test Saturday.
"The result was a direct hit on a mock warhead, which was
demolished in a collision with the intercepting missile , or kill
vehicle, 140 miles above the Pacific.
Comment: The term "demolished may be right, but
according to the Coyle Report . . http://www.house.gov/reform/min/pdf/nmdcoylerep.pdf
, a hit is not a kill.
"Pentagon testers were also counting on the X-band radar to
help them confirm that the warhead had been destroyed.
Instead of doing that, the system froze because it was inundated
with data from debris created by the collision, a Pentagon official
said.
"The radar was so sensitive it overwhelmed its information
processing ability,"
Comment: All radar is sensitive -- light
travels 30 cm in a nanosecond -- object identifications require
resolving nanosecond and subnanosecond difference on very faint
signals. There is no easy, or robust way to deal with noisy
signals, or signals from geometrically complicated or ornate
physical circumstances. That's one of the reasons that it takes
years to build a new radar - when the basic technology has
been under intensive development for almost seventy years. The
electronics isn't easy to build, and it is finicky, drifty,
difficult to build and maintain stuff. In addition - it is only
range (time) information that is resolved -- for the scales
needed, there is essentially no angular resolution of the target
at all. The more signal processing, the better noise can be
handled, up to a point. But discriminating complex physical
situations is inherently difficult - and that won't
change.
"Lt. Col. Rick Lehner, a spokesman for the Pentagon's
Ballistic Missile Defense Organization, said. "The system locked up,
like your computer at home. It was too much work to track all the
debris."
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