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jmfbahciv
Guest
Thu Jan 28, 2010 2:39 pm
J. Clarke wrote:
Quote:
Bret Cahill wrote:
Shine a 4 milliwatt 645 nm wavelength dollar store pet laser onto a
red reflector lens at night and it explodes into color.
Slender reflective fibers would easily reflect a relatively low
power satellite based laser a couple hundred miles back to the
satellite and show up on satellite imaging. A very weak magnet on
each fiber could orient the fibers in specified directions with
respect to the earth's magnitic field it the time it would take to
fall hundreds or thousands of feet from a plane.
It would be very difficult to tramp over the fibers without
disturbing the orientation.
When Al Quada tries a night time ambush, everyone on the planet
knows about it.
This is the kind of hare-brained scheme that some Beltway Bandit
would come up with. Fine, you can detect "tramping". So how do you
tell that it was the bad guys and not some kid herding his Daddy's
goats?
Send a drone over.
And how does "sending a drone over" tell you about events that happened
hours earlier? Are you going to "send a drone over" every time a rabbit
runs down the road?
The satellite system monitors hundreds of thousand of square miles
silently and, with UV or IR lasers, invisibly.
And it finds that, wonder of wonders, there is traffic on roads. The
problem is not determing whether there is traffic but determining which
specific traffic is planning to cause trouble.
As for
distinguishing digging from traffic, fine, let's say you can do
that. So they pay a bunch of kids to bury thousands of coffee cans
all over the place and you can't tell where the real bomb is until
you go dig them all up by which time it's already gone off.
The more you force the enemy to waste time with counter measures the
less time and resources they have to deploy real bombs.
So how much does it cost you to deploy your fancy bullshit and how much does
it cost him to defeat it?
The answer to all those problems is start 300 Tupperware
franchises, 50 Avon, and sell 1000 portable sewing machines
for $1.
/BAH
J. Clarke
Guest
Thu Jan 28, 2010 4:48 pm
Bret Cahill wrote:
Quote:
Shine a 4 milliwatt 645 nm wavelength dollar store pet laser
onto a red reflector lens at night and it explodes into color.
Slender reflective fibers would easily reflect a relatively low
power satellite based laser a couple hundred miles back to the
satellite and show up on satellite imaging. A very weak magnet
on each fiber could orient the fibers in specified directions
with respect to the earth's magnitic field it the time it would
take to fall hundreds or thousands of feet from a plane.
Wind and aerodynamics are much stronger forces than the Earth's
magnetic field.
And?
And in the real world a "very weak magnet" wouldn't do crap,
Have you even calculated the Reynolds number of such a fiber at
terminal velocity?
No answer?
You now look like a complete idiot to anyone who has ever taken
continuum mechanics.
Whereas
You openly admit you are too stoopid to calculate the Reynolds number?
This is not a fluid mechanics class. People are not obligated to perform
pointless calculations just because you say so. However by repeatedly
insisting that someone else perform such a calculation you divert attension
from the failure of your own.
Not interested in playing further.
<plonk>
J. Clarke
Guest
Thu Jan 28, 2010 4:53 pm
Bret Cahill wrote:
Quote:
Shine a 4 milliwatt 645 nm wavelength dollar store pet laser onto
a red reflector lens at night and it explodes into color.
Slender reflective fibers would easily reflect a relatively low
power satellite based laser a couple hundred miles back to the
satellite and show up on satellite imaging. A very weak magnet on
each fiber could orient the fibers in specified directions with
respect to the earth's magnitic field it the time it would take to
fall hundreds or thousands of feet from a plane.
It would be very difficult to tramp over the fibers without
disturbing the orientation.
When Al Quada tries a night time ambush, everyone on the planet
knows about it.
This is the kind of hare-brained scheme that some Beltway Bandit
would come up with. Fine, you can detect "tramping". So how do you
tell that it was the bad guys and not some kid herding his Daddy's
goats?
Send a drone over.
And how does "sending a drone over" tell you about events that
happened hours earlier?
You openly admit you are too stoopid to calculate the air speed of a
drone?
By offering insultes instead of answers you show that you have run out of
defenses for your hare-brained scheme.
Work on your pitch some more--you're a long way from being ready for the
venture capitalists.
Guest
Thu Jan 28, 2010 5:23 pm
In sci.physics Bret Cahill <Bret_E_Cahill_at_yahoo.com> wrote:
Quote:
Shine a 4 milliwatt 645 nm wavelength dollar store pet laser onto a
red reflector lens at night and it explodes into color.
Slender reflective fibers would easily reflect a relatively low power
satellite based laser a couple hundred miles back to the satellite and
show up on satellite imaging. Â A very weak magnet on each fiber could
orient the fibers in specified directions with respect to the earth's
magnitic field it the time it would take to fall hundreds or thousands
of feet from a plane.
Wind and aerodynamics are much stronger forces than the Earth's magnetic
field.
And?
And in the real world a "very weak magnet" wouldn't do crap,
Have you even calculated the Reynolds number of such a fiber at
terminal velocity?
Irrelvant to the question at hand.
I know you hate dealing with the real world and don't understand it, but
get a kid's cheap compass, remove the cover and blow on it gently.
Watch the needle spin around.
Take the needle and drop it.
Notice that when it lands the orientation is random.
Quote:
You now look like a complete idiot to anyone who has ever taken
continuum mechanics.
Now you are falling back on insults because your proposition has no
defensible foundation.
Quote:
much less
"orient the fibers in specified directions", which, if it would work,
would be one direction.
Do you think the magnetic element must always be aligned in the same
direction as the reflective part of the fiber?
I never said anything about any particular direction, just that IF your
scheme could work, the alignment would be in ONE direction, not "directionS".
Quote:
Are you really this dumb or are you just pulling our legs?
Have you nothing to say but insults?
--
Jim Pennino
Remove .spam.sux to reply.
Bret Cahill
Guest
Thu Jan 28, 2010 5:45 pm
Quote:
Fine, you can detect "tramping". So how do you
tell that it was the bad guys and not some kid herding his Daddy's
goats?
Send a drone over.
And how does "sending a drone over" tell you about events that happened
hours earlier? Are you going to "send a drone over" every time a rabbit
runs down the road?
You think a rabbit will have the same footprint as a dozen men?
Quote:
The satellite system monitors hundreds of thousand of square miles
silently and, with UV or IR lasers, invisibly.
And it finds that, wonder of wonders, there is traffic on roads.
And that there is traffic around mountain caves w/o roads.
Quote:
The
problem is not determing whether there is traffic but determining which
specific traffic is planning to cause trouble.
You can always buy 400,000 drones.
They already have 25 years worth of video of Afghan countryside,
almost all of it is useless.
Bret Cahill
Bret Cahill
Guest
Thu Jan 28, 2010 5:50 pm
Quote:
So how much does it cost you to deploy your fancy
.. . .
Quote:
The answer to all those problems is
Is to spread sheet the costs of surveillance by drone only vs
satellite + drone.
Of course, if you are too stoopid to calculate the time it takes for
radiation to be reflected back to a satellite then you aren't going to
get good answers no matter what you try.
Bret Cahill
Bill Snyder
Guest
Fri Jan 29, 2010 5:42 am
On Thu, 28 Jan 2010 20:41:08 -0800 (PST), Bret Cahill
<BretCahill_at_peoplepc.com> wrote:
Quote:
So how much does it cost
Can you think of any commodity cheaper than glass slivers or fibers?
Yes. Big talk.
--
Bill Snyder [This space unintentionally left blank]
Bret Cahill
Guest
Fri Jan 29, 2010 6:36 am
Quote:
Shine a 4 milliwatt 645 nm wavelength dollar store pet laser
onto a red reflector lens at night and it explodes into color.
Slender reflective fibers would easily reflect a relatively low
power satellite based laser a couple hundred miles back to the
satellite and show up on satellite imaging. A very weak magnet
on each fiber could orient the fibers in specified directions
with respect to the earth's magnitic field it the time it would
take to fall hundreds or thousands of feet from a plane.
Wind and aerodynamics are much stronger forces than the Earth's
magnetic field.
And?
And in the real world a "very weak magnet" wouldn't do crap,
Have you even calculated the Reynolds number of such a fiber at
terminal velocity?
No answer?
You now look like a complete idiot to anyone who has ever taken
continuum mechanics.
Whereas
You openly admit you are too stoopid to calculate the Reynolds number?
This is not a fluid mechanics class.
It is now:
Do you know of a better suspension for a compass needle than laminar
flow terminal velocity?
Bret Cahill
Bret Cahill
Guest
Fri Jan 29, 2010 6:39 am
Quote:
Shine a 4 milliwatt 645 nm wavelength dollar store pet laser onto
a red reflector lens at night and it explodes into color.
Slender reflective fibers would easily reflect a relatively low
power satellite based laser a couple hundred miles back to the
satellite and show up on satellite imaging. A very weak magnet on
each fiber could orient the fibers in specified directions with
respect to the earth's magnitic field it the time it would take to
fall hundreds or thousands of feet from a plane.
It would be very difficult to tramp over the fibers without
disturbing the orientation.
When Al Quada tries a night time ambush, everyone on the planet
knows about it.
This is the kind of hare-brained scheme that some Beltway Bandit
would come up with. Fine, you can detect "tramping". So how do you
tell that it was the bad guys and not some kid herding his Daddy's
goats?
Send a drone over.
And how does "sending a drone over" tell you about events that
happened hours earlier?
You openly admit you are too stoopid to calculate the air speed of a
drone?
By offering insultes instead of answers
Where are the critical responses, i.e., numbers and/or properly
applied laws of nature?
Bret Cahill
Bret Cahill
Guest
Fri Jan 29, 2010 6:41 am
Quote:
So how much does it cost
Can you think of any commodity cheaper than glass slivers or fibers?
Bret Cahill
Bret Cahill
Guest
Fri Jan 29, 2010 6:45 am
Quote:
Shine a 4 milliwatt 645 nm wavelength dollar store pet laser onto a
red reflector lens at night and it explodes into color.
Slender reflective fibers would easily reflect a relatively low power
satellite based laser a couple hundred miles back to the satellite and
show up on satellite imaging. A very weak magnet on each fiber could
orient the fibers in specified directions with respect to the earth's
magnitic field it the time it would take to fall hundreds or thousands
of feet from a plane.
It would be very difficult to tramp over the fibers without disturbing
the orientation.
When Al Quada tries a night time ambush, everyone on the planet knows
about it.
unless it's cloudy, smoky or windy.
There are some days when I don't cycle to work too.
Maybe we should abolish bicycles . . .
Quote:
How many 4 mW lasere would ir take to cover the interesting parts of
the world?
Stronger lasers aren't a serious cost.
The biggest cost will be producing and distributing the fibers.
Bret Cahill
John Jones
Guest
Fri Jan 29, 2010 2:29 pm
Bret Cahill wrote:
Quote:
Shine a 4 milliwatt 645 nm wavelength dollar store pet laser onto a
red reflector lens at night and it explodes into color.
Slender reflective fibers would easily reflect a relatively low power
satellite based laser a couple hundred miles back to the satellite and
show up on satellite imaging. A very weak magnet on each fiber could
orient the fibers in specified directions with respect to the earth's
magnitic field it the time it would take to fall hundreds or thousands
of feet from a plane.
It would be very difficult to tramp over the fibers without disturbing
the orientation.
When Al Quada tries a night time ambush, everyone on the planet knows
about it.
The mililary needs some material that can be crop dusted onto road
beds that can only be disturbed by digging and not by vehicle traffic.
Ordinary traffic performs a certain amount of "gardening" on a dirt
road, meaning some of thetaggant_will_ be mixed into the roadbed
material. How deeply depends on the exact nature of the material (sand/
clay/organic dirt, salts, concrete, asphalt, etc.) the kind and degree
of traffic, the weather _and_ climate, and so on.
Worst case you get washboarding which requires periodic repair,
meaning deeper penetration by thetaggant. It will however be more
evenly distributed than the sort of localized dugskullery you're
talking about.
Hence the sort of disturbance due to traffic will be easily
differentiable from that due to digging.
The material must be deposited with a characteristic "thumbprint" that
can be identified with the appropriate sensors but cannot be
duplicated, i.e., it cannot be swept up and spread over a freshly
planted bomb.
This method wouldn't reveal the old bombs but it would make it easy to
spot where a roadbed was recently dug up.
Just off the top of my head, how about microscopic polymer chips
like those used in dynamite. Rather than the complex layering used to
indicate batch numbers etc. it would be infused infused with an
additive which, when exposed to UV, fluoresces in the IR, not the
visible. If laid down by ground vehicle or say Predator or other drone
during low traffic periods it would have a fairly even characteristic
distribution, and any disturbance will be immediately visible by
inspection by personnel wearing IR goggles during the day, and at
night with IR goggles and the assistance of a UV lamp. Inspection
could also be done by suitably-equipped drones of course.
Attempts to "sweep up" and use the dust to cover new bombs will not
replicate the dust distribution as laid down originally.
Mark L. Fergerson
Guest
Fri Jan 29, 2010 7:19 pm
Quote:
Kill all the privates you want, destroy all the materiel you can -
we'll send some more. We're happy to make our military supply friends
rich, rich, rich! The real weapon is local sand flies as trypanosome
vectors (leishmaniasis). The whole US, not merely its army, is
already defeated. A million veteran's faces will rot away starting in
20 years. Transmitted by blood transfusions and needle sharing, too.
HIV was the small stuff
Hey Al, Anti Leishmaniasis stuff is around, I know, I worked in the
lab that solved a major part of the problem.
Steve
Bret Cahill
Guest
Sat Jan 30, 2010 7:34 am
Quote:
So how much does it cost
Can you think of any commodity cheaper than glass slivers or fibers?
Yes. Big talk.
Which is why we are still waiting for your spread sheet on why it
should be summarily dismissed.
Are you really this witless in real life or are you just pulling our
legs?
Bret Cahill
Guest
Sat Jan 30, 2010 8:05 am
In sci.physics Bret Cahill <BretCahill_at_peoplepc.com> wrote:
Quote:
So how much does it cost
Can you think of any commodity cheaper than glass slivers or fibers?
Yes. Â Big talk.
Which is why we are still waiting for your spread sheet on why it
should be summarily dismissed.
Still obsessed with spreadsheets, I see.
The acquistion cost of base materials is, for most things, a trivial
cost in total system cost.
Quote:
Are you really this witless in real life or are you just pulling our
legs?
Typical Cahill response when backed into a corner.
--
Jim Pennino
Remove .spam.sux to reply.
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