Posted on 07/22/2006 3:07:27 AM PDT by Paul Ross
Harbor Freight Co. has a battery-powered, racquet-shaped bug zapper (1500 volts) that my wife really likes for the occasional bug that sneaks in, on sale for $2.99.
I like the sound wave weapons that cause instant loss of bowel control. Let's see those deployed against the muzzies!!
Later.
And who or what would prevent the excremists from polishing their rockets to mirror finish to deflect away most of the laser energy? It is very cheap, too, in comparison with THEL. With shells and mortars it is more tricky as powder gases leave their residue.
Because it doesn't work. This has been tested. It fails because there is too much infrared absorption and "shock kill" destroying the booster structural integrity. This countermeasure was always cavalierly postulated by the bozos at the FAS, Federation of American Scientists, a liberal anti-defense unthink tank (with few real scientists) which the MSM relied on to oppose SDI. Surprising they never admitted when they were debunked.
It is very cheap, too, in comparison with THEL.
Not since it doesn't work.
With shells and mortars it is more tricky as powder gases leave their residue.
Doesn't work for those reasons...and the above. Infrared absorption can't be deflected with mirror finish.
There are infrared/visual mirrors in the lab, and so there are the mirror materials, some of very high reflectivity. IR and visible light lasers have such mirrors as their parts, so right there one has all the necessary coating materials - no need to re-invent the wheel.
An indoor bug zapper?
Some very interesting physics going on there no doubt.
Concerning the FAS - IMHO There is no such thing as Liberal Scientists. There are in fact Liberal Political Scientists.
Laser beam diverges. Beam energy density on the target is much less than on the laser mirror unless the target is very close, so the heavy cooling on the target might not be necessary. And as for increased dwell time - these lasers work in bursts on the order of one second, maybe two or three.
" == An indoor bug zapper? == "
You betcha! Environmentally benign (except to bugs). Batteries NOT included, but cheap. If you get one, let me know how you like it.
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=40122
The burst mode makes more sense if you are looking to maximize 'shock kill'. Physical affects are probably slightly similar to a supercavitating underwater torpedo traveling through an underwater thermal break. Temperature and pressure differentials. Yes the beam energy at the primary mirror is going to be greater then the applied target beam energy. The main question would be, how much energy loss per distance, and that my friend is probably heavily classified. Would also be affected by atmospheric conditions.
Well, small lasers [easier to collimate] in rangefinders have beam divergence in the range of 0.5 millirad [aka MIL from mil-dot scope]. Assume the same here and you will not be far off. Thus at 5 km distance the beam would be something like 3 m in diameter. If at the source it is about 1 meter wide, then energy density at 5 km is 1/9th of that on the laser mirror.
Richard Saunders, et al., Lasers Operation, Equipment, Application, and Design (New York, NY. McGraw-Hill Book Company, 1980), p. 10. For reference, The lower limit on the divergence (or spreading) of a laser beam is a function of the wavelength of the light and the size of the aperture. And divergence can be reduced by either shifting to shorter wavelengths (higher frequencies) or increasing the size of the aperture. Lasers whose divergence is reduced to the theoretical minimum are categorized as diffraction limited.
Hints of the character of the generally unseen forces controlling/manipulating areas like the Middle East are contained in the bible, specifically in the book of Daniel where the Prince of Persia and of Greece are mentioned. Concepts of this hidden warfare engaged by some few are not limited to biblical times. See the book "Rees Howells, Intercessor" - Norman Grubb, and "Radiant Glory" - Martha Wing Robinson. I am presuming there are others, only these two come to mind as I have read them.
Chief attributes of such warriors are love for the Savior (yes, Jesus Christ), very little remaining self-life, love for fellow man and an unflagging pursuit of the goal: destruction of evil and an ushering in of the Millenial Kingdom. None of this requires the carnage rampant with Islam.
This type of warfare is not engaged by the many, as so few are willing to lay their own lives down to the extent necessary. As you may imagine, such a stripping is not popular.
Of course, no national armies push this offense. We fight in the natural realm, since this is all we know.
Oh, you could also read Ephesians 6: 10 - 18, especially ver 12.
Sufficient elaboration?
Yep...and I agree 1000%.
It does. In solid-state laser assemblies, they refer to them as "fiber" lasers. Bundling a number together to produce a combined beam. It also helps with beam divergence. In a way, its analogous to the "Gatling Gun" approach. Which allows sustained rates of fire which would otherwise be unmanageable...allowing the unused barrels to cool.
Just my 2 cents. Thanks for the info.
You're welcome.
Check out this follow-on news story:
Northrop Grumman Unveils Skyguard Laser Defense System
Defense Daily, July 25, 2006
By Ann RooseveltNorthrop Grumman [NOC] this week unveiled Skyguard, the next generation laser-based air defense system that could provide speed-of-light defense for deployed forces, military installations, critical civilian airports, harbors, or industry.
Denied success on the ground, terrorists have taken to the air. Rockets and mortars rain down on U.S. troops and allies in Iraq. The threats are inexpensive, easily available, and even homemade versions have attacked civilian populations, for example, in Israel. Counter fire has often caused civilian casualties, which escalates conflict.
A single Skyguard system can generate a protective shield of about 10 kilometers in diameter, company officials said at a briefing at their Arlington, Va. offices on Wednesday. It can detect, track and destroy--at the speed of light--single or multiple threats from short-range ballistic missiles, short-and long-range rockets, artillery shells, mortars, cruise missiles, unmanned aerial vehicles, anti-tank guided missiles and man-portable (MANPADs) threats.
"We believe it could be produced in about 18 months," Dan Wildt, director of business development for Directed Energy Systems at Northrop Grumman's Space Technology unit, said. The initial system would likely cost around $150 million to $200 million, while orders for multiple systems could drop the price to around $25 million per copy. It costs about $1,000 a shot, basically the recurring cost of the chemicals.
Northrop Grumman's laser expertise dates back to the 1960s. Skyguard is derived from the successful Tactical High Energy Laser (THEL) Advanced Concept Technology Demonstration test bed developed by Northrop Grumman for the U.S. Army and the Israel Ministry of Defense in light of the Katyusha rocket threat to northern Israel.
"We never turned on the laser and failed to hit the target," Wildt said.
THEL claims 46 successful kills against single, multiple and surprise Katyusha rocket attacks, artillery projectiles, large caliber rockets and mortars.
Skyguard has next generation laser, power and computing capability in a platform that is a factor of four times smaller than THEL, which is based on 1980s technology, Wildt said.
"We never turned on the laser and failed to hit the target," Wildt said.
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