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User: Dyslexicon

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  1. Re:Not doubling the infrared, but slowing by half. on Finally, a True Green Laser · · Score: 3, Interesting

    If you were slowing down light to make it green you'd need to start with ultra-violet light, not infrared.

    The real physics is well documented on Wikipedia. I recommend reading their page on non-linear optics.

  2. Re:Is it good? on Video Game Adaptation In the Works For A Song of Fire and Ice · · Score: 3, Insightful

    How it's going to finish is really straight-forward.

    When the seven kingdoms have sufficiently weakened themselves via in-fighting, the Others will overwhelm the wall. Danerys lands on the shores of the seven kingdoms with her dragons. Jon Snow, who is clearly the prince-who-was-promised, joins forces with her to fight off the Others fulfilling the title of the series.

  3. Re:You're doing it wrong on Internal Instant Messaging Client / Server Combo? · · Score: 1

    A handful of reasons off the top of my head:

    EMR vendor support. (Or you could fly someone in ever time you needed help...)
    Limited patient EMR access. (Web appointment scheduling, e-visits, medical record summaries, etc.)
    Cross-deployment communication.
    EMR internal messaging integration with external email accounts.
    The dream of sharing medical records between organizations would also require this, but, alas, that's just a dream.

  4. Re:Mayan Calendar ends in 2012, coincidence ??? on The New York Times On Earth's Magnetic Flip-Flop · · Score: 1

    I also wonder if the polar shift will effect magma flows ...

    Unlikely; the fields are far to weak, and get even weaker during a field reversal.

    actually, i'd expect this to be a likely effect. it's well known that the earth's magnetic field is due to the rotational motion of magma in the earth's core. It makes sense that if the magnetic field is changing, then the motion of the magma is also changing in some related way.

    Whether this actually has an effect on the magma flows we see here on the surface... who knows. Maybe not, but i'd certainly believe it possible.

  5. Re:Gravity is wrong on Missing Matter... Still Missing · · Score: 1

    i'm agreeing with the above(and the poster who has also replied to this same post) in that yes you have missed the point. All of this Dark Whatever nonesense stems from the seperation between how GR tells us the universe should behave and how the universe actually does behave.

    There was a day when Newton's gravity was overthrown by GR, which was a more general theory that was correct in the limits in which it was originally conceived. Is it so hard to believe that just perhaps it's possible that GR is correct only in some other limit and that some other theory which is more general yet will supersede it?

  6. Re:Computer Science != Programming on Math And The Computer Science Major · · Score: 2, Interesting

    It isn't entirely true that (good!) CS programs aren't for people who want to write code. I went to a University of Wisconsin satellite school for a few years and took courses in their CS department. The CS major had different options for the "emphesis." There was the traditional theory emphesis which is what is being discussed above, but there was also a code-monkey emphesis for those of us who wanted to write code.

    in retrospect, though, this might explain why the professors couldn't have coded their way out of a cardboard box.

  7. Re:LASER ? on Laser System to be Tested in Boulder, CO · · Score: 5, Informative

    you're thinking of red lasers. Red light passes through air much better than the higher frequencies (blue, green, yellow, etc). A great example of this is the color of the sky. Light from the sun passing through the atmosphere has its blue components scattered much more readily than the lower freqency components, so you see the sky as being blue. When the sun is rising/setting you see the sky as red because red light isn't scattered well the red light that reaches your eyes is much more intense

    so, why are these people using green light that they know will be scattered? Because that's exactly what tells us stuff about the atmosphere!how much was scattered at position x compared to position y? how much was scattered at time t1 as compared to time t2?

    The pollution causes more light to be scattered, for sure, but that's not WHY you see the light. Rest easy :)

  8. Re:S. Boom on Laser System to be Tested in Boulder, CO · · Score: 2, Insightful

    If the laser was strong enough to ionize anything, the laser wouldn't work! all of the energy would go into the air molecules and the beam would be stopped only after traveling only a small fraction of the earth's atmosphere.


    moral of the story: no sonic boom. the wavelength of light is chosen so as to minimize the deposition of energy into the atmosphere.

  9. Re:Just goes to show.. on 7th World Solar Challenge Underway · · Score: 1

    The thing about the NIMBY logic is that on a certain level it does make sense. Consider:

    You buy a sizeable plot of land in rural somewhere for your summer home. you don't feel bad because if things ever go bad in the workplace, you'll be able to sell off the property for about what you bought it for, probably more.

    enter the power company wanting to put windmills up near enough to your land to put them in sight. This would destroy your property value which puts a serious dent in your financial security.

    Personally, i think the screws should be put to these people anyway. who are you to need a second home! I don't get one :(

    Smoke and polution don't have the same level of effect that a large wind-farm has on property value, thus it is less important to worry about. Sadly, I believe that to be the case. Welcome to capitalism.

  10. Re:Asteroids on Next Major War in Space? · · Score: 1

    Did you miss that story (last week?) where we didn't see an asteroid until AFTER it has passed Earth? Our detection isn't anywhere adequate to do what you suggest. plus, those weapons aren't as effective as you think. They'd need to be deployed well in advance.

    And seeing as how we've had a hard time getting to mars lately, landing on some small asteroid with a less well known orbit...

  11. Re:China isn't the only threat on Next Major War in Space? · · Score: 1

    while i see that holding space could be important, in theory, the USA has much more important battles to fight down here on the ground. As contriversial as the war in iraq is, terrorists with weapons of mass destruction are a much more palpable threat than some possible space race. If China wanted to attack us, they could just launch an ICBM. I'm sure being in space would grant them some advantage, but this isn't some kind of new threat. Maybe once we're confident that a group of terrorists can no longer strike anywhere at any time, we can concentrate on shoring up space.