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Can World's Largest Laser Zap Earth's Energy Woes?

newviewmedia.com writes "Scientists at the Lawrence Livermore National Laboratory plan on using a laser the size of three football fields to set off a nuclear reaction so intense that it will make a star bloom on the surface of the Earth. If they're successful, the scientists hope to solve the global energy crisis by harnessing the energy generated by the mini-star."

16 of 372 comments (clear)

  1. Funding... Anyone? by digitalchinky · · Score: 5, Insightful

    Quote: We have a very high confidence that we will be able to ignite the target within the next two years...

    So basically it'll never happen. Haven't they been saying this for the last 20 years?

    1. Re:Funding... Anyone? by Anonymous Coward · · Score: 1, Insightful

      In the 1970's, researchers working on magnetic confinement fusion (the other way of achieving fusion - without the lasers) set out a timetable and the required funding to achieve fusion within 30 years. At the time they asked for approx. $10bn. The fusion community still hasn't received that much funding and so hasn't achieved their goal yet. So the quote "fusion is always xx years away" is actually something of a misnomer. It should read "Fusion is xx years and $xx away."

  2. Commercialisation by benjfowler · · Score: 3, Insightful

    The big problems concern engineering -- how to turn a piece of very expensive scientific equipment into a cost-effective and reliable power station. The challenges are huge, and not just for inertially-confined fusion, but magnetically confined fusion as well.

    I'm 30 and I'm not even sure I'll be alive to see a working fusion power plant.

  3. Re:Not to be hosted inside cities by MoonBuggy · · Score: 3, Insightful

    Luckily enough, we've got plenty of infrastructure dedicated to transmitting power from generators to our cities already. It's not like you can fit a coal fired plant in your back yard, either...

  4. Re:Not to be hosted inside cities by wisnoskij · · Score: 2, Insightful

    how is powering an entire city not worth 3 football fields of real estate?
    I would not be surprised if that is not already in the ballpark of what is being used.

    --
    Troll is not a replacement for I disagree.
  5. When will we quit generating steam for power? by Bruha · · Score: 2, Insightful

    The most technical power plants in the world still use steam powered turbines. When and who is going to get us a way to convert directly to power?

  6. Re:Focus Fusion by Extremus · · Score: 2, Insightful

    Offtopic!? I mention a related fusion power project and get modded "offtopic". Someone mention a related way of making things going kaboon and get modded "interesting". Ohh, insane world.

  7. Re:Focus Fusion by Eunuchswear · · Score: 2, Insightful

    Not only that, but their current results generate 50% of the input energy without any of the neutron rich dirty output typical of deuterium based fusion.

    So they make more energy by not turning it on. Great.

    --
    Watch this Heartland Institute video
  8. Re:in 20 years ... again? by Eunuchswear · · Score: 2, Insightful

    "It will take at least another 20 years, with adequate funding, to develop a continuous fusion reaction that
    could heat water, create steam and turn generators at a commercial fusion power plant, she said."

    See the problem now?

    --
    Watch this Heartland Institute video
  9. Re:And nothing could possibly go wrong... by j_166 · · Score: 4, Insightful

    How about how the one guy was bitten by a radioactive spider and gained spider powers?

  10. Re:Super Cool er I mean hot by ErikZ · · Score: 3, Insightful

    "So to replace the fuel based primary energy Germany must build 95 nuclear plants."
    Or four reactors, 24 times as powerful.

    How many fossil fuel plants do you think they're running now to produce the rest of their power? A few hundred?

    --
    Democrats or Republicans. They are both taking us to the same place and they are not afraid of us anymore.
  11. Not mutually exclusive! by Logarhythmic · · Score: 3, Insightful
    FTFA:

    "The world needs to employ existing fixes for climate change rather than looking for a technological silver bullet that will prove to be too expensive for commercial energy production anyway"

    Actually, the world really ought to be doing both. I'm not implying the existence of a "silver bullet" but any renewable energy source (especially one as fundamental as solar fusion) is probably a worthwhile endeavor. Just because it isn't immediately commercially viable doesn't mean we can't still benefit from it.

    --
    "Before criticizing someone, first walk a mile in his shoes. Then, you'll be a mile away... and you'll have his shoes."
  12. Re:bad journalism by Anonymous Coward · · Score: 1, Insightful

    TFA states that you just get tritium from seawater, which is wildly incorrect. Tritium is synthetic, only the deuterium can be had from seawater.

  13. Re:And nothing could possibly go wrong... by jellomizer · · Score: 3, Insightful

    1. You actually found these jokes funny in the first place.
    2. You impression of the humor changes just because you learned about the guys religious/political stance.
    3. You even care what his religious/political stance of an actor is?

    You are one really petty person.

    --
    If something is so important that you feel the need to post it on the internet... It probably isn't that important.
  14. Re:bad journalism by tmosley · · Score: 3, Insightful

    To be fair, a random bunch of dirt doesn't make much heat, but put a few million (billion?) cubic miles of the stuff together, and you get a molten core, a thin layer of solidified crust penetrated with volcanos, etc.

  15. Re:bad journalism by michael_cain · · Score: 2, Insightful

    When you go read the material at the NIF web site, there seem to be a lot of problems that haven't got past the "conceptual design" stage:

    • How to manufacture 400,000 deuterium/tritium targets per day on site.
    • How to hit the targets when they are moving at 100 meters/sec.
    • How to produce enough tritium on site to use for target manufacture.
    • How to build lasers and optics that can cycle rapidly enough.
    • How to do inter-shot chamber preparation at the necessary rate.
    • Developing materials that work well at 500 degrees C and satisfy all the other necessary properties.
    • During fabrication, targets are cooled to 20 degrees K, and the target has to remain at this temperature until injection.

    In some ways, it seems like ignition is one of the more minor problems they have to solve.