Comment on China’s ‘artificial sun’ breaks nuclear fusion limit thought to be impossible

AA5B@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

• mckean@programming.dev ⁨3⁩ ⁨weeks⁩ ago

  articles such as this one usually are optimized for their audience, you just aren’t the audience. that’s ok. I’m rarely the audience either :) a quick search should give you what you’re looking for www.science.org/doi/10.1126/sciadv.adz3040

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  • zeca@lemmy.ml ⁨3⁩ ⁨weeks⁩ ago

    It isnt optimized. Its gibberish written just to give some weight to the headline. People do bad jobs at science popularization too.

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  • AA5B@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

    Cool, thanks. So much more readable

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• humanspiral@lemmy.ca ⁨3⁩ ⁨weeks⁩ ago

  article didn’t say anything. How does denser plasma achieve higher temperatures or other benefits? What advances did their denser plasma produce?

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  • AA5B@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

    Right. where’s the actual content, the wording not treating us like idiots?

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    • jjlinux@lemmy.zip ⁨3⁩ ⁨weeks⁩ ago

      There is no current actual improvement other than the possibilities. By cooling the plasma edge and using clean wall materials, they broke a theoretical density barrier that could potentially bring steady-state fusion closer to reality.

      That’s all it is. We’re no closer to steady fusion, but now we know we can push past the Greenwald limit.

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      • AA5B@lemmy.world ⁨2⁩ ⁨weeks⁩ ago

        Thanks. Seems like a positive step

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  • Mpatch@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

    Plasma is made from basicly over charging a gas with electrons the gas getting all pissy about having those electrons and starts dumping them. something do with elements wanting stability. In that process you get alot of heat out put. Now f you make it more dense I would conclude simply, you now have more ionized atoms in the plasma stream, meaning your plasma will be hotter if the stream will be the same size or if the plasma stream is shrunk but has the same number of ionized gas atoms, you have the same heat out put but in a smaller stream.

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    • AnUnusualRelic@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

      You’re having a space characters infestation, you should do something about that.

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      • Mpatch@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

        ?

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  • j5906@feddit.org ⁨2⁩ ⁨weeks⁩ ago

    While a plasma is far from an ideal gas:

    pV=nRT

    p is the pressure, T the temperature, when you increase the pressure while keeping everything else the same, you increase the temperature aswell. The density here is the colloquial term for pressure.

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• Andonyx@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

  I generally agree that science reporting treats everyone like children, but I really don’t have a problem with this analogy. Stars are the only naturally occurring fusion we have to observe and compare it to. To me that makes sense.

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  • adespoton@lemmy.ca ⁨3⁩ ⁨weeks⁩ ago

    Sure… but the metaphor glosses over the fact that they haven’t really told us anything of interest. It SOUNDS good, but there’s no way to tell how significant it actually is.

    Fusion breakthroughs have sounded good since the 90s, but we’re still 10 years away from anything useful.

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• brownsugga@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

  Most Americans read at or below a 6th grade level

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  • jabjoe@feddit.uk ⁨2⁩ ⁨weeks⁩ ago

    So we hear. But the world is not America and this is a British newspaper.

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    • Corkyskog@sh.itjust.works ⁨2⁩ ⁨weeks⁩ ago

      To be fair I don’t think literacy rates in the UK blow the US out of the water or anything.

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      • jabjoe@feddit.uk ⁨2⁩ ⁨weeks⁩ ago

        I check on this. So first thing I found, literacy rates and average reading age are different things. Literacy rate, able to read at all, is clearly tracked and both countries are like 99%. Reading age seams really mushy. If you can get some numbers, please share!

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