Tokamak
magnetic confinement device used to produce thermonuclear fusion power
This article is about the fusion reaction device. For other uses, see Tokamak (disambiguation).
A tokamak (/ˈtoʊkəmæk/; Russian: токамáк) is a device which uses a powerful magnetic field to confine plasma in the shape of a torus. The tokamak is one of several types of magnetic confinement devices being developed to produce controlled thermonuclear fusion power. As of 2021, it is the leading candidate for a practical fusion reactor.
https://en.wikipedia.org/wiki/Tokamak
Fusion Reaction
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Fusion Reaction
The Tokamak
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Re: Fusion Reaction
China's Artificial Sun Just Smashed a Fusion World Record
The formidable reactor reached 120 million degrees Celsius for an astounding 101 seconds.
BY CAROLINE DELBERT
JUN 7, 2021
China has set a new record for sustained nuclear plasma reaction.
The “artificial sun” tokamak reactor ran at 120 million Celsius for 101 seconds.
That’s a huge step—but we’re still far off from true sustained energy for fusion.
China’s “artificial sun” tokamak has sustained a plasma reaction for a whopping 101 seconds at 120 million degrees Celsius, setting new records in the field of nuclear fusion. The breakthrough could pave the way for a carbon-neutral energy future.
EAST (Experimental Advanced Superconducting Tokamak), or HT-7U, is a custom-built fusion reactor that has operated in different phases since 2006. Like many of the world’s tokamak experiments, EAST has reached fusion before. As a refresher, inside the donut-shaped (or, sometimes, more spherical) containment of a tokamak, sun-hot plasma swirls in a circle that’s held in place by supercooled electromagnets.
https://www.popularmechanics.com/scienc ... ld-record/
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Re: Fusion Reaction
My mind boggles… amazing stuff.
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Re: Fusion Reaction
Where does the heat go? When you release that much energy, it has to go someplace.
Re: Fusion Reaction
It’s in Joe's house...right next to yours. And in the Kennedy house, and Mrs. Macklin's house, and a hundred others.
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Re: Fusion Reaction
Well, these reactors are built like a donut, and donuts only last 110 seconds in the average person's hand. I wonder if this is just a coincidence? Are there a lot of donut shops near these reactors? Do Chinese eat donuts, or do their reactors make something else like noodles?
Re: Fusion Reaction
I suspect a lot of engineering design decisions come down to how hungry the drafter is and what shops are still open that time of night.
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Re: Fusion Reaction
If they were not shaped like donuts but instead a whole box of Munchkins® Donut Holes and I were around, we're talking more like 48.6 seconds they would last. I have no self-control around them. They are my weakness, my kryptonite.
101010 ![Towel :towel:](./images/smilies/f_towel.gif)
![Towel :towel:](./images/smilies/f_towel.gif)
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Re: Fusion Reaction
Yes, that word torus is a cool one.
That's almost like TWO WHOLE MINNITS, which is unpossible. A torus in my hand is gone in under a minnit, in no more than three bites. Poof. Hundred and ten seconds, my ass. What do they do, study it before they take a bite? That's un-American!... and donuts only last 110 seconds in the average person's hand.
Don't mind me, I just fell out of a coconut tree. ![🥥](//cdn.jsdelivr.net/gh/twitter/twemoji@latest/assets/svg/1f965.svg)
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Re: Fusion Reaction
Well, polite company does not eat like John Belushi when others are looking. Perhaps in private.Foggy wrote: ↑Fri Nov 19, 2021 1:29 pmYes, that word torus is a cool one.
That's almost like TWO WHOLE MINNITS, which is unpossible. A torus in my hand is gone in under a minnit, in no more than three bites. Poof. Hundred and ten seconds, my ass. What do they do, study it before they take a bite? That's un-American!... and donuts only last 110 seconds in the average person's hand.
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Re: Fusion Reaction
I suspect you're right. That Popular Mechanics link had a rabbit hole to fall into, and one of their links discussed lithium metal batteries. They explained the battery construction was like a BLT - bread, lettuce, tomatoe, bacon, tomatoe, lettuce, and finally bread. No discussion what role mayonnaise played. But, the battery sounded delicious.
Re: Fusion Reaction
Off Topic
I don't remember when I last had a donut.
Used to love them as a kid, and of course every 8am engineering/production meeting in the early '80s was equipped with donuts..
But other than Atkins Farms Cider donuts, I don't find today's donuts appealing at all. And I'm now 1400 miles from Atkins Farms.
Used to love them as a kid, and of course every 8am engineering/production meeting in the early '80s was equipped with donuts..
But other than Atkins Farms Cider donuts, I don't find today's donuts appealing at all. And I'm now 1400 miles from Atkins Farms.
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Re: Fusion Reaction
That's it. The secret of how to make sustain fusion work is right there.bill_g wrote: ↑Fri Nov 19, 2021 4:13 pmI suspect you're right. That Popular Mechanics link had a rabbit hole to fall into, and one of their links discussed lithium metal batteries. They explained the battery construction was like a BLT - bread, lettuce, tomatoe, bacon, tomatoe, lettuce, and finally bread. No discussion what role mayonnaise played. But, the battery sounded delicious.
MORE MAYO!!!
Maybe a donut or 20 on the side.
101010 ![Towel :towel:](./images/smilies/f_towel.gif)
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Re: Fusion Reaction
Make that with peanut butter, and I'm in. A peanut butter and mayo sammich is good. A mayo and donut sammich needs to be negotiated.northland10 wrote: ↑Fri Nov 19, 2021 6:23 pmThat's it. The secret of how to make sustain fusion work is right there.bill_g wrote: ↑Fri Nov 19, 2021 4:13 pmI suspect you're right. That Popular Mechanics link had a rabbit hole to fall into, and one of their links discussed lithium metal batteries. They explained the battery construction was like a BLT - bread, lettuce, tomatoe, bacon, tomatoe, lettuce, and finally bread. No discussion what role mayonnaise played. But, the battery sounded delicious.
MORE MAYO!!!
Maybe a donut or 20 on the side.
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Re: Fusion Reaction
OMFG, mayonnaise on a donut.
This is part of the unraveling of the fabric of society. There's simply no bottom rung on the ladder.![Nope :nope:](./images/smilies/eusa_snooty.gif)
![Eek :eek:](./images/smilies/eek.gif)
This is part of the unraveling of the fabric of society. There's simply no bottom rung on the ladder.
![Nope :nope:](./images/smilies/eusa_snooty.gif)
Don't mind me, I just fell out of a coconut tree. ![🥥](//cdn.jsdelivr.net/gh/twitter/twemoji@latest/assets/svg/1f965.svg)
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Re: Fusion Reaction
Mayo on a donut must be like pineapple on a pizza ![Wink ;)](./images/smilies/icon_e_wink.gif)
![Wink ;)](./images/smilies/icon_e_wink.gif)
Re: Fusion Reaction
Nope - it's worse than pineapple pizza. It's easier to pull of the pineapple off a pizza and have an edible.
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Re: Fusion Reaction
A discussion of fusion cuisine?
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Re: Fusion Reaction
The right size pineapple ring would fit a doughnut perfectly.
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Re: Fusion Reaction
Yeah. Like kimchi ice cream, or anything with kale.
Chicken noodle soup pie.
Grilled salmon encrusted with dill and horseradish. (actually that is really good).
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Re: Fusion Reaction
Off Topic
Yeah, threadjack.
So maybe it won't be nuclear fusion, or the invention of the tractor beam.
NEVERTHELESS, I do fully expect at least two, maybe three more enormously important new invention/technologies to emerge in my lifetime. I mean the kind of thing that changes society utterly, like the personal computer and the smart phone.
I'm so old I remember getting up and walking across the room to change the channel on a crappy little B&W Tee Vee, and there were only three channels available (and maybe some grainy UHF). The changes in technology that I've already witnessed are mind-blowing, incredible, akin to what Arthur C. Clarke said is functionally magic.
And 98% of the scientists and engineers who ever lived in the history of the world are still alive. Back in the day, there weren't many. Today, I'm a dad of two STEM superstars.
The pace of technology is accelerating. There's no limit to it. Get your mind right, 'cause you ain't seen nothing yet.
So maybe it won't be nuclear fusion, or the invention of the tractor beam.
NEVERTHELESS, I do fully expect at least two, maybe three more enormously important new invention/technologies to emerge in my lifetime. I mean the kind of thing that changes society utterly, like the personal computer and the smart phone.
I'm so old I remember getting up and walking across the room to change the channel on a crappy little B&W Tee Vee, and there were only three channels available (and maybe some grainy UHF). The changes in technology that I've already witnessed are mind-blowing, incredible, akin to what Arthur C. Clarke said is functionally magic.
And 98% of the scientists and engineers who ever lived in the history of the world are still alive. Back in the day, there weren't many. Today, I'm a dad of two STEM superstars.
The pace of technology is accelerating. There's no limit to it. Get your mind right, 'cause you ain't seen nothing yet.
Don't mind me, I just fell out of a coconut tree. ![🥥](//cdn.jsdelivr.net/gh/twitter/twemoji@latest/assets/svg/1f965.svg)
![🌴](//cdn.jsdelivr.net/gh/twitter/twemoji@latest/assets/svg/1f334.svg)
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Re: Fusion Reaction
The Eagle has landed .... I mean the first torus segment...
Re: Fusion Reaction
Heh. Well, that sent me down a fun rabbit hole. I've seen people build home cyclotrons and fuzor style fusion reactors at home, and am now having a bit of fun poking around what one could potentially do with a model tokamak as a hobbyest.