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posted by n1 on Thursday June 11 2015, @02:55PM   Printer-friendly
from the taking-advantage-of-the-best-minds dept.

Sen. John McCain pens an opinion piece on Wired:

America's military technological advantage is eroding—and fast.

For the past decade, our adversaries have invested heavily in rapidly improving their militaries to counter our unique advantages. At the same time, the speed of globalization and commercialization means that advanced disruptive technologies are now—and increasingly will be—available to less sophisticated militaries, terrorist groups, and other non-state actors.

Maintaining our military technological advantage is about much more than a larger defense budget or a better fighter or submarine. These things are important, but to give our military the capabilities it needs to defend the nation, the Department of Defense must be able to access innovation in areas such as cyber, robotics, data analytics, miniaturization, and autonomy, innovation that is much more likely to come from Silicon Valley, Austin, or Mesa than Washington.

[...] There are those who say that even with changes like these, our nation's innovators simply aren't interested in doing business with the Pentagon. And after spending much of my career in Washington scrutinizing Pentagon business practices, I am not exactly surprised to hear such sentiments. But in the final analysis, I believe the brightest minds will always be driven to solve the world's toughest problems. These are the problems our military confronts every day. And these are the problems we can solve if we create an acquisition system that enables the Department of Defense to take advantage of the best minds, firms, and technologies that America and the world have to offer.


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  • (Score: 3, Informative) by takyon on Thursday June 11 2015, @03:51PM

    by takyon (881) <takyonNO@SPAMsoylentnews.org> on Thursday June 11 2015, @03:51PM (#195011) Journal

    What makes you think that lasers won't work and that they are a waste of money?

    Atmospheric dispersal? Yes, they might work, in perfectly clear conditions.

    http://aviationweek.com/technology/general-atomics-third-gen-electric-laser-weapon-now-ready [aviationweek.com]

    But the Gen 3’s efficiency is at the level of fiber lasers, Davis says, adding that the company has worked for several years to improve beam quality and achieved “excellent quality” in the latest tests. Adaptive optics adjust the beam to compensate for atmospheric distortion.

    http://optics.org/news/5/3/13 [optics.org]

    Joe Mangano, the program manager within DARPA’s “Excalibur” project, says that the recent demo shows that the OPA-corrected laser can outperform conventional systems that suffer from reduced beam quality. Maintaining a good beam shape is critical to ensure that sufficiently concentrated power is delivered to a target to destroy it.

    The 21-element OPA used by DARPA, which was made by Ohio-based Optonicus, comprised three identical clusters of seven fiber lasers. Each cluster measures 10 cm across.

    Combined with an “ultra-fast” algorithm, the OPA is said to be able to correct for atmospheric turbulence within a millisecond.

    Also, these lasers will be scaled up in power in order to do more:

    http://2.bp.blogspot.com/-4MJFb8l7xKk/VGjqXfQZbHI/AAAAAAAA4So/uk01ssa9Wuk/s1600/screenshot-fas.org%2B2014-11-16%2B10-17-16.png [blogspot.com]
    http://4.bp.blogspot.com/-adFrG4eZwMY/VGjp1HclnII/AAAAAAAA4Sg/qa0GK6oK_xA/s1600/screenshot-fas.org%2B2014-11-16%2B10-15-16.png [blogspot.com]

    30-150 kW lasers have already been built. 300 kW should be available (as a prototype) by 2018. Eventually ships will have megawatt lasers.

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  • (Score: 2) by deimtee on Thursday June 11 2015, @11:51PM

    by deimtee (3272) on Thursday June 11 2015, @11:51PM (#195188) Journal

    An interesting question is how well do the lasers work in rain or fog?
    Correcting for atmospheric distortions - adaptive optics - is fine for telescopes, but how do you compensate for thousands to millions of random lenses in your target path dispersing the beam energy?
    If all the "bad guys" need to do is wait for the right weather, then the ship is going to need a pretty good backup defence.

    --
    If you cough while drinking cheap red wine it really cleans out your sinuses.
    • (Score: 0) by Anonymous Coward on Friday June 12 2015, @05:39AM

      by Anonymous Coward on Friday June 12 2015, @05:39AM (#195278)

      > An interesting question is how well do the lasers work in rain or fog?

      They burn it out nearly instantly, creating an effective vacuum. The amount of energy that fog and rain-droplets can absorb is practically nil. It is the same reason a mirror is no defense against these lasers either, the amount of energy just overwhelms any distorting/reflecting ability and vaporizes it instead.

      • (Score: 0) by Anonymous Coward on Saturday June 13 2015, @02:13AM

        by Anonymous Coward on Saturday June 13 2015, @02:13AM (#195605)

        What if you build a shield for your missile out of the same material as the adaptive optics?

    • (Score: 2) by AnonTechie on Friday June 12 2015, @10:07AM

      by AnonTechie (2275) on Friday June 12 2015, @10:07AM (#195337) Journal

      In the future, USA shall ordain that wars shall only be fought under clear skies only !!

      --
      Albert Einstein - "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former."