• Fizz@lemmy.nz
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    24 minutes ago

    This is so cool. I remember seeing that Europe is working on a massive mega project to build an even bigger reactor for more experiements. Its costing like 75 trillion

    • Zink@programming.dev
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      1 hour ago

      Well, if I lived in the world of American liberals and conservatives I was taught about growing up, the game would be over the moment fusion power became cheap, and everybody would be happy.

      In the real world though? We’ll wait way too long, then get excited when it finally starts to happen, and then right before The Big Day some smooth brained asshole will blow up part of the reactor or fly a plane into the facility or something.

    • Schadrach@lemmy.sdf.org
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      1 hour ago

      How ks the drill baby drill crowd going to compete against mini stars in a can?

      Nu-Cu-Lar Bad? That’s…about as far as they’ll make it. To be fair, that might be as far as they need to. It’s all the oil companies will approve of them learning, at least.

      Of course, it sounds like the big problem of how to remove more power from it than you spend keeping it reacting remains an issue, presuming they can continue to extend reaction lifetimes to be functionally unlimited.

    • ubergeek@lemmy.today
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      2 hours ago

      I suppose we’ll need to worry about that, once we get a net positive output from a fusion reactor.

    • Baggie@lemmy.zip
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      6 hours ago

      Idk dude, we already have the sun and wind but they hate that stuff too, despite it being very close to free. Hell they’ll probably bitch about fusion causing a surplus of power outside peak loads.

      If it doesn’t perpetuate the broken ways we currently do things it doesn’t give their buddies money, so it’s woke or something else bullshit.

    • Blue_Morpho@lemmy.world
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      6 hours ago

      Plastic Straws. Plastic cups. Wrapping indvidual food items in plastic and then putting them in a larger plastic bag which you carry home in an even larger plastic bag.

      • njordomir@lemmy.world
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        2 hours ago

        The food has been impregnated with microplastics as well. This machine runs on sugar, but someone put oil in the tank. :-/

        • EndRedStateSubsidies@leminal.space
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          2 hours ago

          The ironic thing is the human body runs on fat and a huge portion of our illness stems from the insane amount of sugar we consume.

          https://www.youtube.com/watch?v=cST99piL71E&list=PLE8LmUoWei5Qp5Nz7C4FMNs6hGNx7M3Jg&index=2

          Summary: In 1984 our group published the first modern study of the effects of adapting to a low carbohydrate high fat diets on athletic performance. I have spent the next 31 years expanding on this research. In my presentation I will present the results of that research program and conclude with our exciting new evidence for the role of low carbohydrate diets and ketosis in the prevention of whole body inflammation in athletes training daily at very high loads. I will also present evidence to show that elite ultra-endurance athletes have an unexpectedly high capacity to oxidize fat during exercise and so potentially to run at fast paces for prolonged periods without the need to ingest exogenous fuels.

          The 1928 Bellevue Stefansson Experiment McClellan W, et al. JBC 87:651,1930 http://www.jbc.org/content/87/3/651.f… Keto-adaptation Demonstrated Vermont Study Phinney et al JCI 66:1152, 1980

          • njordomir@lemmy.world
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            1 hour ago

            Thanks for sharing. As a frequent cyclist who loves cheese and doesn’t drink soda or eat many sweats, I feel like this will be an interesting read.

  • Match!!@pawb.social
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    1 day ago

    1,337 seconds? That… that number used to mean something, but now i can’t recall what…

  • meowmeowbeanz@sopuli.xyz
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    19 hours ago

    France’s 22-minute plasma reaction is a bold stride toward sustainable fusion energy but remains experimental.

    🐱🐱🐱🐱

  • CoffeeJunkie@lemmy.cafe
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    1 day ago

    Well, I’m still skeptical, but I have far more trust in France’s reporting than Chinese claims.

      • Zink@programming.dev
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        2 hours ago

        Yeah, just like all that anti-white sentiment towards the US because we elected a president who almost passes for off-white.

        Though I suppose there could be other reasons if we dig deep enough.

      • thebestaquaman@lemmy.world
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        2 hours ago

        China: Spews blatant and obvious lies about everything that does or does not cast a shadow. Heavily censors any source.

        Some guy: I don’t trust information coming from China.

        China (and shills): That’s sinophobic!!

      • Blue_Morpho@lemmy.world
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        6 hours ago

        China had a long history of fraudulent science that they need to dig out of to gain a good reputation.

        • ubergeek@lemmy.today
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          2 hours ago

          Nothing like the very highly reliable pharmaceutical “science” done in the US, amirite?

          Its not like we ever had “science” come from the US that said an extremely powerful opioid wasn’t addictive, amirite?

        • cybersin@lemm.ee
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          4 hours ago

          Because a shit ton of fraudulent science hasn’t come out of the US or Europe. Nope. No sir.

      • Pika@sh.itjust.works
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        24 hours ago

        huh, I learned a few new words today

        for others who want to know

        • Jingoism: noun

          1. Extreme Nationalism characterized by a belligerent foreign policy

          2. A bellicose patriotism; aggressive chauvinism; belligerence in international relations

        • Bellicose: adjective

          1. warlike or hostile in manner or temperment

          2. inclined to war or contention

          3. warlike in nature/aggressive;hostile

        • Chauvinism: noun

          1. Militant devotion to and glorification of one’s country; fanatical patriotism.

          2. Prejudiced belief in the superiority of one’s own gender, group, or kind.

          3. Blind and absurd devotion to a fallen leader or an obsolete cause; hence, absurdly vainglorious or exaggerated patriotism.

          • jenesaisquoi@feddit.org
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            14 hours ago

            America doesn’t have a government. It’s a continent. Are you possibly referring to the USA?

            • epicstove@lemmy.ca
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              3 hours ago

              In North America they teach that North America and South America are 2 separate continents.

              When someone refers to “America” in the contexts of countries they 9 times out of 10 mean the US. Since people from there usually call themselves “Americans” rather than “United statians”

            • DragonTypeWyvern@midwest.social
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              1 day ago

              You don’t think uncritical and nationalistic dismissal of the “enemy’s” achievements as they must be both strong and weak has a place under “aggressive or exaggerated patriotism?”

              I guess that just makes them a racist then.

              • Tja@programming.dev
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                23 hours ago

                As far as I can tell by their comment history they are American, so I don’t know how is trusting France to be “nationalistic”. Or “patriotic”. Or aggressive, for that matter. Not a hint of militarisitc feeling either.

                I might be racist too, because I don’t trust what comes out of China as much as what comes from France. Or Germany. Or Switzerland. Or Japan. Or south Korea. Or Australia. Or India. Or Kenya. Yes, it must be racism.

  • DataDisrupter@feddit.nl
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    2 days ago

    I didn’t see any mention of the output in the article. 22MW injected, but does anyone know if the reaction was actually generating a positive output?

    • Jesus@lemmy.world
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      1 day ago

      Sounds like the goal of the test wasn’t to vet ignition power in relation to output. These people are testing the durability of system designs that can maintain a reaction after ignition.

      If this was a car, they wouldn’t be testing the fuel efficiency, they’d be testing how long they could drive before the wheels fell off.

    • sushibowl@feddit.nl
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      1 day ago

      No magnetic confinement fusion reactor in existence has ever generated a positive output. The current record belongs to JET, with a Q factor of 0.67. This record was set in 1997.

      The biggest reason we haven’t had a record break for a long time is money. The most favourable reaction for fusion is generally a D-T (Deuterium-Tritium) reaction. However, Tritium is incredibly expensive. So, most reactors run the much cheaper D-D reaction, which generates lower output. This is okay because current research reactors are mostly doing research on specific components of an eventual commercial reactor, and are not aiming for highest possible power output.

      The main purpose of WEST is to do research on diverter components for ITER. ITER itself is expected to reach Q ≥ 10, but won’t have any energy harvesting components. The goal is to add that to its successor, DEMO.

      Inertial confinement fusion (using lasers) has produced higher records, but they generally exclude the energy used to produce the laser from the calculation. NIF has generated 3.15MJ of fusion output by delivering 2.05MJ of energy to it with a laser, nominally a Q = 1.54. however, creating the laser that delivered the power took about 300MJ.

      • frayedpickles@lemmy.cafe
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        16 hours ago

        The input energy doesnt matter that much. Nobody is going to use 1980s laser tech to power a real reactor. As with OP, inertial confinement is interested in very small nuanced science aspects, not making a power plant.

        • BalderSion@real.lemmy.fan
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          1 day ago

          OK, so we should be clear there are broadly two approaches to fusion: magnetic confinement and inertial drive.

          In magnetic confinement a plasma is confined such that it can be driven to sufficient density, temperature and particle confinement time that the thermal collisions allow the fuel to fuse. This is what the OP article is talking about. This Tokamak is demonstrating technologies that if applied to a larger the experiment could probably reach a positive energy output magnetically confined plasma.

          The article you referenced discusses inertial drive experiments, where a driver is directly pushing the fuel together, like gravity in the sun, a fission bomb shockwave in a hydrogen bomb, or converging laser beams in Livermore’s case.

          Livermore’s result is exciting, but has no bearing on the various magnetic confinement approaches to fusion energy.

      • DataDisrupter@feddit.nl
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        1 day ago

        I wasn’t aware of that distinction about the energy for the laser to generate the heat energy within the reaction not being factored into the Q value, very interesting, thank you! Would that energy for the laser still be required in a “stable reaction” continuously, or would it be something that would “trail off”?

        • Womble@lemmy.world
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          Inertial confinement doesnt produce a “stable reaction” it is pulsed by it’s nature, think of it in the same way as a single cylinder internal combustion engine, periodic explosions which are harnessed to do useful work. So no the laser energy is required every single time to detonate the fuel pellet.

          NIF isnt really interested in fusion for power production, it’s a weapons research facility that occasionally puts out puff pieces to make it seem like it has civilian applications.

            • Womble@lemmy.world
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              13 hours ago

              It would be more productive if you said how you think im wrong. Just saying ‘youre wrong’ doesnt really add anything to the discussion.

        • BalderSion@real.lemmy.fan
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          In my experience the community will usually distinguished between “scientific Q” and “wall plug Q” when discussing fusion power gain. Scientific is simply the ratio of power in vs power out, whereas wall plug includes all the power required to support scientific Q. Obviously the difference isn’t always clearly delineated or reported when talking to journalists…

    • Sceptiksky@leminal.space
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      Article said 2.6GJ input, 2.6 output so 1Q, but I’m not certain it’s really the case.

      Edit: I can’t find my source back, so it’s likely false

    • ilinamorato@lemmy.world
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      7 hours ago

      It’s always thirty years away because every time it gets close to 15 years away they cut the funding in half. Zeno’s Dichotomy in action.

  • tomkatt@lemmy.world
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    2 days ago

    This is freaking awesome. Only a few years ago it was exciting to see a fusion reaction last a fraction of a second.

    • Thief@lemmy.myserv.one
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      1 day ago

      It is awesome. Whichever country develops it first will be remembered as the next ‘moon landing’ event forever.

      • Saleh@feddit.org
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        1 day ago

        So a big event without any practical relevance because there is more cheaper, reliable and safer alternatives available?

        • ilinamorato@lemmy.world
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          6 hours ago

          cheaper,

          Once commercial fusion comes out, it’s likely to be about half the cost of wind.

          [more] reliable

          There’s absolutely no way to know how reliable human-generated fusion is, but it powers every star in the sky for billions of years, so it could probably last for a few decades here on Earth without much trouble.

          and safer alternatives

          Nuclear fusion, when begun, creates water as its byproduct. This water is, admittedly, very slightly radioactive; if you drank the “nuclear waste” that is produced by a fusion plant as your only source of water, it would increase your radiation exposure the same as if you flew from New York to Los Angeles and back once per year. Now, that’s not nothing, but it is almost nothing.

          As for large-scale disasters from nuclear fusion, that’s almost impossible—and you can see why by the fact that this very article is news. With a nuclear fission reaction, the difficulty is in containment; get the right things in the right place, and the reaction happens automatically. There are natural nuclear fission reactors in the world, caves where radioactive materials have formed in an arrangement that causes a nuclear reaction. But in order for nuclear fusion to happen on its own, you need, quite literally, a stellar mass. So if something goes wrong in a fusion power plant, where we’re manufacturing the conditions that make fusion possible at great energy cost and effort, the reaction just stops unless there’s a literal sun’s worth of hydrogen hanging around. It cannot go critical, it cannot explode, it cannot break containment; it can only end. It’s hard to sustain a fusion reaction, and that’s why stories like this are news: because it’s a major breakthrough anytime we get closer to a reaction where we can feed enough power that it generates back into the machines that keep it running. Once the power to those machines is cut, a fusion reaction cannot continue.

        • AnyOldName3@lemmy.world
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          1 day ago

          People fall off rooftops fitting solar panels, burn to death repairing wind turbines that they can’t climb down fast enough to escape, and dams burst and wash away towns. Renewable energy is much less killy than fossil fuels, but per megawatt hour, it’s comparable to nuclear, despite a few large incidents killing quite a lot of people each. At the moment, over their history, hydro is four times deadlier than nuclear, wind’s a little worse than nuclear, and solar’s a little better. Fission power is actually really safe.

          The article’s talking about fusion power, though. Fission reactions are dangerous because if you’ve got enough fuel to get a reaction at all, you’ve got enough fuel to get a bigger reaction than you want, so you have to control it carefully to avoid making it too hot, which would cause the steam in the reactor to burst out and carry chunks of partially-used fuel with it, which are very deadly. That problem doesn’t exist with fusion. It’s so hard to make the reaction happen in the first place that any problem just makes the reaction stop immediately. If you somehow blew a hole in the side of the reactor, you’d just get some very hot hydrogen and very hot helium, which would be harmless in a few minutes once they’d cooled down. It’s impossible for fusion power, once it’s working, not to be the safest way to generate energy in history because it inherently avoids the big problems with what is already one of the safest ways.

          • Saleh@feddit.org
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            16 hours ago

            Rovers as opposed to humans. Humans need food, a pressurized, temperated air environment, a discharge for their excrements, a higher level of safety and return mechanisms, much stronger radiation protection…