this post was submitted on 19 Feb 2025
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[–] [email protected] 312 points 1 month ago (6 children)
[–] [email protected] 84 points 1 month ago
[–] [email protected] 27 points 1 month ago (1 children)
[–] [email protected] 29 points 1 month ago (3 children)

Flexing is not good for the containment

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[–] [email protected] 211 points 1 month ago (3 children)

A headline without calling it an "Artificial Sun"?!

[–] [email protected] 78 points 1 month ago (2 children)

The power of the sun in the palm of my hand.

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[–] [email protected] 66 points 1 month ago (9 children)

The amusing thing is that the sun is actually quite a shit fusion reactor. It's power per unit volume is tiny. It just makes it up in sheer volume. A solar level fusion reactor would be almost completely useless to us. Instead we need to go far beyond the sun's output to just be viable.

It's like describing one of the mega mining dumper trucks as an "artificial mule".

[–] [email protected] 25 points 1 month ago (4 children)

I think this energy density math really depends on whether only the core or the whole surface area is taken into consideration.

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[–] [email protected] 25 points 1 month ago* (last edited 1 month ago)

They say "artificial sun" because that's what it is though, there's no fusion reactions here they're just microwaving hydrogen to millions of degrees to study the kind of thing that would happen IF somebody runs a fusion reactor for 22 minutes.

[–] [email protected] 156 points 1 month ago (6 children)

Meanwhile in America we’re trying to make macdonalds cheaper by bundling an extra sandwich to go along with a value meal…

[–] [email protected] 133 points 1 month ago (1 children)
[–] [email protected] 34 points 1 month ago (7 children)

And it only takes 22 seconds to consume.

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[–] [email protected] 139 points 1 month ago (1 children)
[–] [email protected] 68 points 1 month ago (4 children)

The power of the sun in the palm of my hand

[–] [email protected] 34 points 1 month ago (3 children)

la puissance du soleil dans la paume de ma main

Honhonhon

[Takes a drag on a sexy cigarette]

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[–] [email protected] 118 points 1 month ago (6 children)

Why don't we use "shatters world record" like the pro-China articles where they did this for 16 minutes?

I know why.

[–] [email protected] 71 points 1 month ago (1 children)

I know!

Because the articles were written by different people and published in different magazines ya goober.

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[–] FanBlade 52 points 1 month ago (1 children)

Because that one was over double the length of the record before it and this one is closer to a 35% increase.

[–] [email protected] 39 points 1 month ago (3 children)

So it's probably just a "slams"

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[–] [email protected] 113 points 1 month ago (11 children)

Maybe if it runs longer, we all get to jump to a better timeline. 😅

[–] [email protected] 85 points 1 month ago

Or the world blows up and it’s all over. I guess what I’m saying is, no downside, fire it up and let’s see what happens.

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[–] [email protected] 110 points 1 month ago (9 children)

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

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[–] [email protected] 108 points 1 month ago (8 children)

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

[–] [email protected] 43 points 1 month ago (7 children)

The translation has been lost to the ages

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[–] [email protected] 80 points 1 month ago (4 children)

Oh shit. Things are heating up in the fusion race.

[–] [email protected] 91 points 1 month ago (1 children)

IIRC it was expected because previous record from China was essentially a trial for this one. It all happens under ITER project so it’s not that much of a race.

[–] [email protected] 41 points 1 month ago (1 children)

Good shit. I’d rather this be a global cooperative effort rather than a jingoistic dick-waving contest.

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[–] [email protected] 59 points 1 month ago (1 children)

Mr. Fusion now 1 step closer... 10 years late, but still!

[–] [email protected] 32 points 1 month ago (6 children)

Only ten more years, and we'll have it!

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[–] [email protected] 58 points 1 month ago (3 children)

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?

[–] [email protected] 82 points 1 month ago (10 children)

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.

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[–] [email protected] 58 points 1 month 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.

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[–] [email protected] 57 points 1 month ago (1 children)

Has DOGE cut funding to ITER yet?

[–] [email protected] 40 points 1 month ago (1 children)

They sacked everybody. Now they are trying to get them back.

/s

[–] [email protected] 33 points 1 month ago (2 children)

But only the white middle aged men with regular male names and above average height.

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[–] [email protected] 44 points 1 month ago

I hope it smoked a cigarette once it finished.

[–] [email protected] 39 points 1 month ago (6 children)

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

[–] [email protected] 41 points 1 month ago* (last edited 1 month ago) (20 children)

They're part of the same global research effort.

Nice jingoism tho

[–] [email protected] 31 points 1 month ago* (last edited 1 month 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.

[–] [email protected] 29 points 1 month ago (2 children)

TIL not believing a genocidal dictatorship is extremist nationalism

[–] [email protected] 26 points 1 month ago (3 children)

Who's talking about America?

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[–] [email protected] 30 points 1 month ago* (last edited 1 month ago) (1 children)

Just one more giga joule guys ...

Pro fusion research btw just a chronic shitposter

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