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Lockheed Claims Breakthrough On Fusion Energy Project

Lockheed Martin claims it has made a significant breakthrough in the creation of nuclear fusion reactors. The company says it has proved the feasibility of building a 100MW reactor measuring only 7 feet by 10 feet. They say the design can be built and tested within a year, and they expect an operational reactor within a decade. The project is coming out of stealth mode now to seek partners within academia, government, and industry. "Lockheed sees the project as part of a comprehensive approach to solving global energy and climate change problems. Compact nuclear fusion would also produce far less waste than coal-powered plants, and future reactors could eliminate radioactive waste completely, the company said."

73 of 571 comments (clear)

  1. Of course! by ArcadeMan · · Score: 5, Funny

    The company says it has proved the feasibility of building a 100MW reactor measuring only 7 feet by 10 feet.

    That's why it never worked before! Nobody thought about building a two-dimensional reactor!

    1. Re:Of course! by rwv · · Score: 5, Funny

      What the article fails to mention is that the new reactor has to be 800 feet tall or buried 400 feet in the ground. Or 400 feet tall and 200 feet buried. It's pretty complicated figuring out the math here.

    2. Re:Of course! by Anonymous Coward · · Score: 5, Funny

      It is a design on paper only. Of course it is two-dimensional right now.

    3. Re:Of course! by jimmifett · · Score: 2

      Pretty soon, they'll be small enough that you'll hear "Is that a fusion reactor in your pants, or are you just happy to see me?"

    4. Re:Of course! by Hadlock · · Score: 5, Informative

      Nuclear reactors aren't a whole lot larger, they managed to make them small enough to fit on a space rocket, a submarine and back in the 1960's, nine of them on an Aircraft Carrier. It's the support systems (like cooling) and maintenance buildings that end up taking up several acres. Dissipating the waste heat of a 20MW reactor safely, indefinitely, is no small feat.

      --
      moox. for a new generation.
    5. Re:Of course! by Thanshin · · Score: 4, Funny

      Not exactly. Its section is 7 feet by 10 feet. To achieve 100MW the length must be infinite. Any reduction in length implies a proportional reduction in power.

    6. Re:Of course! by allcoolnameswheretak · · Score: 5, Insightful

      Everybody is joking, but this news update on fusion energy coming from an established, well known corporation is pretty serious. Isn't this the first time a respected company is claiming a breakthrough, a working prototype of fusion energy?
      Do you realize what implications this has, if it is really fusion energy as they claim? It's a world changer.
      I got goose bumps just from reading "Lokheed, breakthrough, fusion energy"....

    7. Re:Of course! by bobbied · · Score: 3, Funny

      The company says it has proved the feasibility of building a 100MW reactor measuring only 7 feet by 10 feet.

      That's why it never worked before! Nobody thought about building a two-dimensional reactor!

      Hey, at least it looks good on paper!

      --
      "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
    8. Re:Of course! by ColdWetDog · · Score: 2

      Yeah, the same people that are attempting to build the F-35.

      --
      Faster! Faster! Faster would be better!
    9. Re:Of course! by Talderas · · Score: 2

      No height would be a height of 0. It's a known value. That comic is more akin to a height of infinity.

      --
      "Lack of speed can be overcome. In the worst case by patience." --Znork
    10. Re:Of course! by Hadlock · · Score: 3, Interesting

      No, I am referring to the NERVA rocket engine, a nuclear reactor that shoots superheated hydrogen out the back. The program was so successful followng the Apollo era that Congress cancelled all funding as it would have made a very expensive Mars trip viable using even 1970's technology (shortens the trip from 6 months to 2 months).
       
        http://en.wikipedia.org/wiki/NERVA
       
      Clearly someone doesn't play Kerbal Space Program. This has nothing to do with RTGs.

      --
      moox. for a new generation.
    11. Re:Of course! by AaronLS · · Score: 2

      That was if it got if a moderate amount of funding. The problem is its never seen the kind of funding needed to put it on a decent schedule:

      http://hardware-beta.slashdot....

    12. Re:Of course! by Bodhammer · · Score: 3, Funny

      "they expect an operational reactor within a decade" - by that time solar will be infinitely efficiency and this will obsolete.

      --
      "I say we take off, nuke the site from orbit. It's the only way to be sure."
    13. Re:Of course! by bkr1_2k · · Score: 4, Informative

      There is no working prototype. This is a theoretical break through. They haven't proven anything yet.

      --
      "Growing old is inevitable; growing up is optional."
    14. Re:Of course! by cusco · · Score: 3, Insightful

      Apples and oranges. The F-35 is a Pentagon program designed to funnel taxpayer money to Lockheed to the end of time, the fusion project is their own money so it might actually be real.

      --
      "Think about how stupid the average person is. Now, realise that half of them are dumber than that." - George Carlin
    15. Re:Of course! by painandgreed · · Score: 4, Funny

      "they expect an operational reactor within a decade" - by that time solar will be infinitely efficiency and this will obsolete.

      Yay! Fusion power has moved to just being ten years away instead of the twenty years it has been for the last fifty.

    16. Re:Of course! by budgenator · · Score: 3, Funny

      Dude you not only have room for a Beowolf cluster, but enough space for a 100 MWs to power it!

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    17. Re:Of course! by Maury+Markowitz · · Score: 4, Informative

      As the person that wrote most of the article you're linking to: no. NERVA was a relatively linear upgrade to the H-2 in performance terms, and there were H-2 upgrades that would have closed the gap to a degree (H-2T for instance).

      There *are* nuclear engine designs that are much more efficient than this, like the gas-core design. They would have definitely make Mars a reasonable shot, but they are inherently "leaky" and suitable only for use in space. That's fine, but it pre-supposes you have the infrastructure to get them up there, and we didn't.

      Finally, Congress wasn't shutting down NERVA, they were shutting down Mars. They repeatedly told NASA that they would not receive funding for a Mars shot from the late 1960s right through to the 1990s, but the NASA folks just kept pushing here and there trying to sneak it in.

    18. Re:Of course! by AaronLS · · Score: 3, Interesting

      "No matter how many billions you spend, you're not going to make a Chevette go faster than the speed of light."

      You're comparing something that most would say is theoretically impossible, to something that most agree is theoretically possible and has already been achieved on a very small scale(LLNL ignition, of course not at the efficiency tipping point yet).

      "The problems are technical"
      The problems facing a mission to the moon were also technical, but with extraordinary funding they were able to fast track it by dividing up all the technical problems they faced and tackling them individually.

      Fusion has many technical problems that could be tackled independently in parallel. See "When will fusion power my house (or vehicle)?" in the previously linked article. It covers this pretty extensively.

      "You can't point at funding as a problem for fusion."
      I can and did. The facts provided in the link are pretty compelling.

      "..can't point at funding.... The problems are ... economic."
      You contradicted yourself.

      "No amount of money will fix that."
      You've never heard of this thing called "employment". You have a technical problem, you use money to employ experts in the field that you are having that problem, and they come up with a solution. If that solution requires labor and materials to implement, you then employ some more people.

      No or little amount of funding means little meaningful progress. You have some independent researchers working here and there to produce some papers and try to get published, but at some point you've got to coordinate activities and get appropriate amount of effort applied to each technical problem in an organized way:
      http://i.imgur.com/sjH5r.jpg

      You can't call BS if your only supporting argument is BS.

  2. global warmening worse than we thought... by Thud457 · · Score: 3, Informative

    Things must really be bad for them to be releasing the "alien" technology from the skinkworks.

    --

    the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

    1. Re:global warmening worse than we thought... by Wonko+the+Sane · · Score: 3, Interesting

      I remember a few years back there was a page on the Los Alamos lab web site that talked about "POPS fusion" experiments.

      Basically like IEC fusion, but instead of trying to maintain constant pressure, allow the pressure to oscillate regularly.

      Then that page dissapeared.

      I wonder if this announcement is about the same thing.

    2. Re:global warmening worse than we thought... by Thud457 · · Score: 2

      The Skinkworks is where the lizardmen work (S4). Do you even tinfoil, bro?

      --

      the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

    3. Re:global warmening worse than we thought... by gtall · · Score: 2

      Someone should inform the Greek guy with the electric hair. Surely this must have been designed by aliens with the weird elongated heads using anal probes...under a pyramid...and used to power UFOs.

  3. wow by Charliemopps · · Score: 4, Insightful

    Never thought I'd read this...
    We just might survive this century after all.

    1. Re:wow by Charliemopps · · Score: 5, Informative

      Here's the Wikipedia article on his project: http://en.wikipedia.org/wiki/H...
      Here's some research he was involved in at MIT that he was involved in at some unknown date: http://ssl.mit.edu/research/Fu...
      Here's a video of one of the researchers talking about it: https://www.youtube.com/watch?...

    2. Re:wow by Charliemopps · · Score: 2

      Here's a video of one of the researchers talking about it: https://www.youtube.com/watch?...

      Watch the video, it explains the whole thing. Wow... I'm very excited.

    3. Re:wow by lgw · · Score: 2, Interesting

      Great links. If this is deuterium-deuterium fusion, I'm baffled why it isn't crazy radioactive. You get two reactions from that, one of which makes Helium and a neutron, the other makes Tritium and Hydrogen. Deuterium-Tritium fusion makes a very energetic neutron.

      The neutron from the D-D reaction carries ~2.5 MeV, which isn't that hard to stop (though the reactor is so small - wonder if that includes shielding). The neutron from the D-T reaction, however, is ~14 MeV which is a real problem. Have they found a way to extract all the tritium before it can fuse? That would be neat (and hopefully drive down the price of Tritium gun sights).

      --
      Socialism: a lie told by totalitarians and believed by fools.
    4. Re:wow by Charliemopps · · Score: 5, Interesting

      Further reading: http://physics.ucsd.edu/do-the...

      Based on this, 1 gram of Deuterium produces 320 megawatts of power.
      The average American would consume the amount of deuterium found in 60kg of ordinary water per year to produce the energy they need in a year. There's enough Deuterium in our oceans to produce free power until long after the sun dies.

    5. Re:wow by Xest · · Score: 2

      Yeah, you say that now, but when we get more power, you can all but guarantee we'll use more power.

      Probably, we'll start creating climate controlled neighbourhoods or something, live in Sunnyvale Town, where it's 30c all year around!

    6. Re:wow by tomhath · · Score: 5, Funny

      Nah. Just build some really big air conditioners and put them outside. That'll work.

    7. Re:wow by Crispy+Critters · · Score: 4, Informative
      >I'm baffled why it isn't crazy radioactive.

      It is! Nontechnical discussions aren't very good at differentiating between three somewhat different areas of concern. First, neutrons and gammas produced by the reaction need to be shielded but go away when you turn the reaction off. Second, short-lived activation in which materials are radioactive, but with a half-life of years or less that becomes safe in a reasonable time. Fusion reactors have both of these, but they are manageable. Third, fission leaves behind nuclear waste materials with a half-life in tens of thousands of years--this is nasty stuff and is around basically forever. Fusion produces no long-lived waste (there is probably some component of some alloy that will prove to make tiny amounts of bad waste, but nothing significant compared to fuel rods from fission reactors).

    8. Re:wow by swillden · · Score: 2

      You are relating a finite amount of mass (gram) to a rate of energy production (watt). This does not work. It should take a rate of mass (grams per second) to result in some rate of energy production (joule per second, aka watt). Perhaps you meant megawatt-hours?

      What the article actually says is that one gram of deuterium produces 10^12 J, which is 280 MWh. Not sure where the "320" came from.

      --
      Note to ACs: I usually delete AC replies without reading them. If you want to talk to me, log in.
    9. Re:wow by Filter · · Score: 2

      This doesn't make sense, mass equates to energy, not the rate of energy.
      I understand watts to be power, or the rate of energy usage.

      --

      "better ways of doing things eventually just replace the inferior things" - Linus Torvalds 09-08-07

    10. Re:wow by radtea · · Score: 5, Insightful

      Third, fission leaves behind nuclear waste materials with a half-life in tens of thousands of years--this is nasty stuff and is around basically forever. Fusion produces no long-lived waste (there is probably some component of some alloy that will prove to make tiny amounts of bad waste, but nothing significant compared to fuel rods from fission reactors).

      The critical thing to understanding this is that fission reactors are (necessarily) full of heavy elements, which is where the long-lived stuff comes from. Fusion reactors are full of light elements.

      There are very fundamental physical reasons why radioactive light elements almost always have much shorter lifetimes than radioactive heavy elements. If you've only got a few nucleons to play with, turning a proton into a neutron is a major change in configuration, so the energy gap between the radioactive isotope and the adjacent stable isotope is large, and in general the lifetime against beta decay scales inversely with the fifth power of the endpoint energy. In heavy elements, which have so many nucleons they can be adequately modelled as liquid drops in some cases, changing one neutron to a proton doesn't change the configuration very much so the energy difference is small and the lifetime can be very large. Unfortunately, although the energy of the beta particle emitted is small, the energies of the other particles in the decay chain (gammas and more betas in most cases) can be pretty much anything.

      So: heavy elements (fission) bad; light elements (fusion) good. Fusion reactors are designed with this in mind. They will produce a lot of nasty stuff, but almost all of it will decay rapidly, so given that the engineering issues of fission waste are pretty much under control (the political issues are not) we can be confident that fusion power will be OK in that regard.

      --
      Blasphemy is a human right. Blasphemophobia kills.
  4. credibility of article is doubtful by Anonymous Coward · · Score: 5, Insightful

    "U.S. submarines and aircraft carriers run on nuclear power, but they have large fusion reactors on board that have to be replaced on a regular cycle."

    yeah, no

    1. Re:credibility of article is doubtful by merky1 · · Score: 2

      Not sure why you got modded down to 0, but the article definitely needs some fact checking. Especially the last line about ships using large FUSION reactors. Looks like an investment scam more than a breakthrough...

      --
      --WooooHoooo--
    2. Re:credibility of article is doubtful by 91degrees · · Score: 5, Informative

      It's just bad journalism. The actual press release doesn't make this claim.

    3. Re:credibility of article is doubtful by LWATCDR · · Score: 4, Informative

      It is amazing that reporters seem to lack even an 8th grade level of science education.
      They did change the fusion reactor to fission but.
      It now reads
      "U.S. submarines and aircraft carriers run on nuclear power, but they have large fission reactors on board that have to be replaced on a regular cycle."
      The reactors last the life of the ship. It is only the fuel that gets changed they they are aiming for that to be the life of the ship as well. It is at least 20 years today.
      And this part.
      "Ultra-dense deuterium, an isotope of hydrogen, is found in the earth's oceans, and tritium is made from natural lithium deposits."
      Wow.... ultra-dense......
      Good grief.
      Well the reporting is crap but lets hope Lockheed really has what it says it has.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    4. Re:credibility of article is doubtful by BringsApples · · Score: 2
      Last line of TFA:

      Lockheed shares fell 0.6 percent to $175.02 amid a broad market selloff.

      --
      Politics; n. : A religion whereby man is god.
    5. Re:credibility of article is doubtful by Sloppy · · Score: 2

      From a certain point of view, they are huge.

      I once read (*) that the full gamma burst from a thermonuclear explosion takes several seconds. (Whereas from a fission bomb, it's mostly over in a fraction of a second; the bigger-yield fusion bombs create a lot of temporary unstable shit that gives off more gamma rays as it decays over several seconds.) This led to me developing a nuclear war survival trick, which I will now share with everyone on Slashdot, even though I haven't tested (**) it yet:

      If there's a sudden blinding flash in the sky, quickly try to estimate: does it look like a big one? If so, then dive for cover, preferably behind something big and solid, like a boulder or something like that. HTH.

      (*) Wish I could cite a reference, but I'm lazy.

      (**) If my trick is no good or based on misunderstood physics, you can make fun of me after the next nuclear war.

      --
      As copyright owner of this comment, I authorize everyone to defeat any technological measure which limits access to it.
    6. Re:credibility of article is doubtful by LWATCDR · · Score: 2

      " Carriers typically have one reactor replacement, combined with a several year refit and overhaul, halfway through their life."
      No it is a refueling not a reactor replacement.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
  5. journalizm is dead by Thud457 · · Score: 4, Funny

    U.S. submarines and aircraft carriers run on nuclear power, but they have large fusion reactors on board that have to be replaced on a regular cycle.

    OMGWTFROFLOLBBQ! Reuters doesn't have a science correspondent. I didn't know they were headquartered in Texas.

    --

    the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

  6. Not what they said by Punko · · Score: 5, Insightful

    From the Lockheed Martin site : “The smaller size will allow us to design, build and test the CFR in less than a year.

    After completing several of these design-build-test cycles, the team anticipates being able to produce a prototype in five years."

    They ain't got nothin' yet.

    --
    If only we could fall into a woman's arms without falling into her hands
  7. Not New information by Anonymous Coward · · Score: 5, Informative

    Revealed work in 2013

    http://www.dvice.com/2013-2-22/lockheeds-skunk-works-promises-fusion-power-four-years

    1. Re:Not New information by Crispy+Critters · · Score: 3, Insightful
      >Magnetic mirrors have already been proven not to work.

      They do have a huge problem that no one was able to solve. It is not inconceivable that someone who understands the problem will be able plug the ends. But step one is to explain why this mirror would work differently from those mirrors.

  8. Details would be nice by Crashmarik · · Score: 3, Insightful

    This is as about as content free a news story as I have ever seen.

  9. Two global problems solved in my lifetime! by Okian+Warrior · · Score: 5, Funny

    With this and the new ebola infections coming out, it looks like we're on the verge of solving both the energy crisis and overpopulation

    I never thought I'd see so much progress in my lifetime. We live in the future!(*)

    (*) ...of a Stephen King novel, apparently.

    1. Re:Two global problems solved in my lifetime! by Impy+the+Impiuos+Imp · · Score: 2

      Overpopulation is not a problem (in free countries, including economic freedom). People solve shortages and other problems faster than they become seriously impactful (pardon that word.)

      This has been measured again and again and again and is a real effect. Julian Simon got famous making loud public bets with gloom and doomers. His minimum granularity was 10 years, and even that was really a little short for comfort to overcome multi-year cycles as well as buffer time for markets to respond to disturbances.

      --
      (-1: Post disagrees with my already-settled worldview) is not a valid mod option.
    2. Re:Two global problems solved in my lifetime! by phantomfive · · Score: 2

      it looks like we're on the verge of solving both the energy crisis

      No. The energy crisis typically refers to lack of oil, fusion reactors will replace coal. We're still going to have problems in the middle east until we get electric cars.

      --
      "First they came for the slanderers and i said nothing."
  10. Not another scam! Right on! by Mark4ST · · Score: 3, Interesting

    I'm very excited about this! I'm most excited because the announcement came from a known company with a track record, that has everything to lose. Normally this sort of thing come from a scammer looking for chump investors.

  11. Re:Is it fission or fusion? by darronb · · Score: 3, Informative

    Apparently is IS fusion.

    http://en.wikipedia.org/wiki/H...

  12. Re:Solve For X talk from last year link by taiwanjohn · · Score: 2

    Yes! I saw a video lecture on this last year. Been wondering when we'd hear some news on this project.

    --
    XML is like violence. If it doesn't solve your problem, you're not using enough of it. --AC
  13. Some tech info for those interested: by Anonymous Coward · · Score: 5, Informative

    If this really works...really cool things could be just around the corner.

    From WIKI:

    The high beta fusion reactor (also known as the 4th generation prototype T4) is a project being developed by a team led by Charles Chase of Lockheed Martin’s Skunk Works. The "high beta" configuration allows a compact fusion reactor design and speedier development timeline (5 years instead of 30). It was presented at the Google Solve for X forum on February 7, 2013.[1]

    "The device is 2x2x4 meters in size. It is cylindrical shaped. It has a vacuum inside with high magnetic fields, made using electromagnets. Uncharged deuterium gas is injected. It is heated using radio waves, in much the same way a microwave heats food. When the gas temperature reaches over 16 electron-volts, the gas ionizes into ions and electrons. This plasma exerts a pressure on the surrounding magnetic fields. This plasma pressure is counterbalanced by the magnetic field pressure in a beta ratio:

    \beta = \frac{p}{p_{mag}} = \frac{n k_B T}{(B^2/2\mu_0)} [2]

    The plan is to reach a high-beta ratio. Plans call for a compact 100 MW machine. The company hopes to have a prototype working by 2017, scale it up to a full production model by 2022 and to be able to meet global baseload energy demand by 2050. Here are some other characteristics of this machine:

    The magnetic field increases the farther out that the plasma goes, which pushes the plasma back in.
    It also has very few open field lines (very few paths for the plasma to leak out; uses a cylinder, not a Tokamak ring).
    Very good arch curvature of the field lines.
    The system has a beta of about 1.[3]
    This system uses deuterium.[3]
    The system heats the plasma using radio waves.[3]
    The machine was designed by Dr. Thomas McGuire[3] who did his PhD thesis[4][5] on fusors at MIT. Chase said that “the fuel (two isotopes of hydrogen) has six orders [1.000.000] of magnitude higher energy density than oil. You can’t make a bomb from it, and it has no meltdown risk. It’s very different from nuclear fission reactors.”

  14. A better link for the story by AbrasiveCat · · Score: 5, Informative

    I think this AvWeek story http://aviationweek.com/techno... is a better description, but then Aviation Week has more technical writers..

  15. Re:Amazing if it works by catchblue22 · · Score: 4, Interesting

    But plenty of fusion reactor designs have worked in theory; making them work in practice, though...

    Yes, but this is Lockheed Martin. And we live in the age of computer aided design, where we can simulate much of an object before building this. In addition, I'm fairly sure that they have built smaller versions of this as proofs of concept. And now they have Thomas McGuire making the announcements, who is the lead scientist on the project, instead of the project manager doing presentations. He wrote his PhD thesis at MIT on fusors.

    I am inclined to believe that this is the real thing. My main question is this: They use radio frequency radiation to heat the plasma; how have they overcome the rf shielding effect caused by hot plasma?

    --
    This and no other is the root from which a tyrant springs; when first he appears as a protector - Plato (423 to 327 BC)
  16. Re:Sounded real promising right up to.... by catchblue22 · · Score: 4, Insightful

    Sounds real promising right up to "operational within a decade" that's code for we have an idea that on paper sounds like it might possibly work. Please give us lots of money.

    Oh puleeaze. This is Skunkworks. Thomas McGuire did his PhD thesis on fusors at MIT. This isn't just some investment scam. Do some research.

    --
    This and no other is the root from which a tyrant springs; when first he appears as a protector - Plato (423 to 327 BC)
  17. Better article by Dan+East · · Score: 3, Informative

    Here's a much better article, that not only can differentiate between fission and fusion, but also has purty pictures too.

    http://aviationweek.com/techno...

    --
    Better known as 318230.
  18. Only A Decade Away by sycodon · · Score: 2

    So now Fusion Power will only be a decade away...for the next 60 years.

    --
    When Fascism comes to America, it will call itself Anti-Fascism, and tell you to give up your guns.
    1. Re:Only A Decade Away by geekoid · · Score: 3, Insightful

      Well, using time is a mistake. It's really about 25 billion dollars away.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  19. Re:Fusion in some forms can be very dangerous. by Wonko+the+Sane · · Score: 2

    don't try to ridicule people for simply expressing their opinions

    I believe you're being ridiculed for, not for expressing your opinion, but for expressing your mathematical incompetence.

  20. I'm not holding my breath by sirwired · · Score: 3, Interesting

    If an operational prototype is still a decade away, I'm not holding my breath. I'm a little fuzzy how something can be "built and tested" within a year, but require a decade to produce an "operational reactor". How do you test something that doesn't work?

    That said, 100Mw in 70 sq. ft. would indeed be a world-saving device. One of the larger problems to solve with cheap/renewable energy production is getting the juice from the generating plant to the end-user; scaling up distribution grids is not a trivial problem. If every neighborhood substation could have their own reactor, that solves a LOT of issues. For instance, it makes high-powered electric vehicle charging stations viable on a mass scale. It could power desalination plants in remote areas cheaply. Additional power could be quickly brought online upon, say, building a power-hungry factory.

    A utility exec quoted in an article I read a while back said that even with "free" energy (meaning energy with zero fuel cost), that would only enable him to cut prices by about 40% due to capital costs for both generation and distribution. If you can lop much of the "distribution" off, that's a significant cost savings.

    1. Re:I'm not holding my breath by Khashishi · · Score: 2

      And we had a proof of concept for tokamaks in the 50s.

      There are several aspects of this announcement which cause me to disregard it. First of all, there doesn't seem to be any journal article describing the work. I'm of the impression that science journalists are mostly full of shit and one must go to the primary sources to get any semblance of reality. Where are the technical documents?

      The idea of a magnetic mirror is not new. For a state-of-the-art mirror system, take a look at the Gas Dynamic Trap. You see that it's mostly science and not hype. There's plenty of actual journal articles and technical documents. (With Lockheed, we are supposed to just take their word for it, based on their layman explanations to journalists?) Note that scientists working on GDT are much more modest about what is realistically attainable using this technology. A fusion reactor based on GDT technology would be 1km long [AA Ivanov and VV Prikhodko. PPCF 55 (2013) 063001], and so people look at it more as a neutron source for fusion material research than a viable reactor concept.

      Lockheed spokespeople were making the claim that they could develop more quickly than tokamaks due to the small size of the system. Well, you know, first generation tokamaks were also pretty small. We have a good understanding of how reactor parameters will scale with size, and that's why ITER is so large. (The original plan for ITER was even larger, in order to guarantee ignition (fusion gain=infinity), but we have scaled back our ambitions to achieve a fusion gain of 10.)

  21. Re:More nuclear waste? by Charliemopps · · Score: 2

    Look up Fusion and go away.

  22. Re:Other things they said couldn't be done... by Required+Snark · · Score: 5, Insightful
    You're observation about Slashdot is correct. The attitude of a large fraction of posts is, for want of a better word, stupid.

    Teh Stupid is characterized by mindless criticism, nitpicking, absolutist rhetoric, and willful negation of facts. All of which are on display in the response to this thread.

    The aspect I find most disturbing is a clear anti-intellectualism. Comments are not based in fact or logic, but self centered illogic: if I say something is right/wrong, that all I have to say.

    As for the "agenda driven posters", I think the agenda is egomania. That would explain the obsessive negative attitudes. Being relentlessly negative is a way of asserting yourself if you don't have anything else to say.

    Is this getting worse? I'm not sure. I think I see more of it, but don't know if that is because I am more aware of it, rather then an real increase.

    At any rate, when I become annoyed enough, I respond with evidence oriented responses. I find references to uphold my position, and include quotes and links. Now someone may disagree with me, but at least I am not making assertions based solely on my individual position. I am generally disappointed because very few people respond with their own external references.

    In this case I don't feel the need quote very many examples, because the behavior in this thread is rather self evident.

    --
    Why is Snark Required?
  23. Re:Also if accurate its a big slap in the face by Charliemopps · · Score: 5, Insightful

    To everyone who was saying we had to invest more in ITER, or that if we had of been increasing our funding of Tokomak related work was anything but a big science pork barrel.

    A lot of this groups work was based on what was learned at ITER. They actively talk about ITER quite a bit in a lot of their talks.
    I don't think anyone thought ITER was anything more than a research project. It did exactly what it was supposed to do and spurred innovation.

  24. Sometimes nothing is a pretty cool hand by Yergle143 · · Score: 2

    I agree with you that this is hype until proven.

    There are now a dozen or so "alternative" fusion designs out there pursuing the dream of fusion energy and almost all have the property of predicating the work on a sound theoretical foundation but with little practical experimental support. Modeling plasma is notoriously hard.

    Why didn't Lockheed Martin just build the prototype and then announce Q > 1 when there were actual results?

  25. Re:Fusion in some forms can be very dangerous. by MiniMike · · Score: 3, Informative

    The amount of water (as the protium source) used for fusion would be minuscule compared to the volume of the oceans, even if fusion technology was widespread and used over an extended period of time. Most technically literate people would know this, which is probably why your comment was marked 'Troll'. But as not everyone knows everything, your question does deserve a legitimate answer. The volume of water used would probably be more than offset by the amount of water falling to Earth in comets/asteroids/dust/etc. If it did somehow become a problem (extreme emphasis on 'somehow'), we could bring in more water from asteroids as needed. But if we did somehow burn through that much water through fusion in any reasonable timescale, I suspect we would be killed by the waste heat.

  26. Re:Fusion in some forms can be very dangerous. by Anonymous Coward · · Score: 3, Informative

    Earth routinely loses hydrogen, from water, into space. Water vapor in the upper atmosphere is split by solar radiation into hydrogen and (atomic) oxygen. That's why near-Earth space has atomic oxygen.

    Not to fear, though, since that atomic oxygen also combines with hydrogen in the solar wind and ultimately precipitates out as water again. Earth is also routinely bombarded by small ice chunks (comet fragments), again supplying more water.

    The amounts in the above are far beyond anything that human demands for energy would destroy by converting 2 H2O -> He+O2.

    For comparison, Earth's oceans contain over 1,300,000,000,000,000,000,000 litres of water. Even if we destroyed all 60 litres of water need to get the deuterium out (we don't, it's a distillation process) to provide power for one American for a year (see upthread somewhere), the oceans have enough deuterium (never mind protium) to provide a population of 10 billion people, at US consumption rates, energy for about 216 billion years. Which is about 40 times longer than the sun is going to last.

    This is why we need fusion.

    And if we can develop small fusion units which can be fabricated reasonably easily, we can expand into the galaxy by hopping from one Oort-cloud body to the next like Polynesians spreading across the Pacific one island at a time.

  27. Re:Other things they said couldn't be done... by TechnoGrl · · Score: 2

    I used to enjoy internet discussions - back in the early 90's when the bar to entry was at least a 105-110 IQ. Now that everyone can "discuss" it becomes obvious that the roughly 23-25% of humanity who are idiots have roughly 75% more time and willingness to post than anyone else which drives the bulk of the sensible posters away and it spirals downwards from there.

    The concept of free and open discussion is a failed concept. There need to be bars to entry in order to prevent the 25% from taking up 90% of a forum's bandwidth. I am sure that you have noticed that on any given forum the most prolific posters are inevitably the worst posters - driving other far more informed and interesting posters away? It could be something as simple as requiring a credit card and a $2 fee to participate. When you troll, flame,spam or repeatedly say something incredibly, undeniably stupid than you and your card is banned. There are only so many $2 fees and so many credit cards that someone can reasonably obtain. Additionally how about limiting the posting privileges of both the newest AND THE MOST PROLIFIC contributors so that one person can not dominate a discussion.

    I know , I know - cue the rallying cry of "freeze peach!" once again and those are the posters that I am talking about.

    --
    ----- In Your Cubicle No One Can Hear You Scream...
  28. Re:Other things promised repeatedly... by thrig · · Score: 2

    The observed jadedness might perhaps stem from failed promises of energy "too cheap to meter," ah, yes, here's James E. Akins writing in "Foreign Affairs" in the 1970s on that:

        "Having argued throughout this article that the oil crisis is a reality that compels urgent action, let me end on a note of hope. The current energy problem will not be a long one in human terms. By the end of the century oil will probably lose its predominance as a fuel. The measures we have the capacity to take to protect ourselves by conserving energy and developing alternative sources of energy should enable us, our allies, and the producer nations as well, to get through the next 25 years reasonably smoothly. They might even bring us smiling into the bright new world of nuclear fusion when all energy problems will be solved. This final note would ring less hollow if we did not remember the firm conviction of the late 1940s that the last fossil fuel electricity generating plant would have been built by 1970; and that in this new golden age, the home use of electricity would not even be measured. It would be so cheap, we were told, that the manpower cost of reading meters would be greater than the cost of the energy which the homeowners conceivably could consume. But perhaps in 2000..."

    coupled with the periodic media ado about cold fusion (debunked. again. Next!) and otherwise fusion running neck and neck with Mickey Mouse actually entering the public domain ("in 20 years", or five, or whatever), well, I am shocked, shocked and amazed that some humans might somehow have grown a mite bit jaded after decades of such antics.

  29. Re:Other things they said couldn't be done... by meustrus · · Score: 2

    I think the egomania is getting worse, because the Slashdot audience has been steadily expanding for its entire existence. It's not necessarily a matter of what sort of people make up the community. It's probably more a matter of the size of the community and why people joined. When you join a small community, it's because you like what it has to offer and want to contribute. When you join a large community, it's because you like what it has to offer and want to enjoy the benefits. On Slashdot, the biggest benefit is and always has been the ease with which we can communicate our opinions to our peers. Surely lots of people, new members and existing ones who've gone through subtle personality changes, now use Slashdot primarily to try and assert their opinions. All they needed was an audience.

    --
    I sometimes ask revealing, often ignorant-seeming questions. Maybe they're harder to answer than you think.
  30. Don't you actually mean... by tlambert · · Score: 2

    And a prototype by 2017!

    This gives me a really good feeling. :)

    Don't you actually mean "a nice warm feeling"?

  31. I will believe it when I see it by Shirley+Marquez · · Score: 2

    There have been many many reports of fusion power breakthroughs over the years. This is promising because it comes from a company with a track record, but I'm only giving it guarded enthusiasm until I see a real product.