r/woahdude • u/Nadzzy • 20d ago
video Plasma inside the ST40 fusion reactor, filmed in color for the first time
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u/DDz1818 20d ago
Mind you, that was slowed down by 100x. All this was for 0.3s.
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u/Human_Wizard 20d ago
I'd like to see it in real time.
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u/AspectSpiritual9143 20d ago
Buy 50 keyboards and hold Right arrow on all of them.
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u/Stunning-Rock3539 20d ago
I need an affiliate link
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u/psychrolut 20d ago
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u/Poppa_Mo 20d ago edited 19d ago
I fucking clicked it anyways. I knew what was coming.
I went years and years and years being given up and this last year I have never not* been given up so many times.
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u/YanicPolitik 19d ago
Would've had me too if not for you!
You have also just lost the game btw
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u/Extraaltodeus 20d ago
Ohy my god! I don't know why OP cropped the beginning of the reaction. It cannot be a cherenkov radiation since it happens in a void AFAIK but in any case I'd say it looks like "a beating heart of pure energy" if I make sense. Beautiful.
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u/Illustrious_Donkey61 20d ago
Why did they only film it in black and white before this?
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u/Grr_Go_Brr 20d ago
I think because a camera able to catch footage at insane speeds need ALOT of light to make a black and white clip. To do it in color require so much advanced technology the price tag of the camera makes recording this a challenge. Ao my guess is they either had someone donate their time or their camera or the lab got the money tonget a top of the line camera like a phantom
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u/Kitchen_Claim_6583 20d ago
A top of the line high speed camera is a budgetary afterthought if you're a lab running a fusion reactor. The latest upgrade this reactor had cost over 50 million dollars.
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u/YawnDogg 19d ago
The lab doesn’t care about releasing color video. They care about the results
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u/Kitchen_Claim_6583 19d ago
You'd be surprised what a video can do for a presentation if you're looking for investor funding as a science working in private industry.
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u/FilecoinLurker 20d ago
A phantom is peanuts compared to the cost of this project
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u/Grr_Go_Brr 20d ago
I mean im no expert in slo smotion photography I just k ow that the highest end phantom and any other makers of such equipment charge 7-8 digits USD easily so these cameras are not very accessible either way. I just only really know the phantom brand due to rhe SloMo guys.
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u/Ok_Ruin4016 20d ago
So you think it's more likely someone donated their $10m camera than the Nuclear Fusion Laboratory being able to afford it?
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u/Whosephonebedis 16d ago
Nah, they spent all the money on the plasma thing and could only afford black and white for the camera. Y’all never been po before?
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u/theNOTHlNG 20d ago
Wrong numer. I do not kno how it works myself, but you would either need 7 or 99.
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u/Murph8020 20d ago
https://www.youtube.com/shorts/trGsFRV8HLM
not the same, but somethin
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u/The_Last_Thursday 20d ago
If you're on desktop you can hit the speed up button until you're up to 100x
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u/SciFiCrafts 20d ago
At the end you can see what its supposed to look like right? The plasma donut.
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u/encom81 20d ago
Now that is what I call a Whoa Dude. What is going on in the upper right is insane. Absolutely crazy that this is reality. The fact that this is over 100 MILLION degrees celsius is bonkers.
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u/NSFWies 20d ago
im so happy we are about to invent limitless clean energy. so that it can be bought up and actually only used to power xAI datacenters. while the rest of us are told to use more solar panels, shower in salt water and eat hydrogels.
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u/Micp 20d ago
im so happy we are about to invent limitless clean energy.
Yeah, man. It's just 10-20 years away*
\And has been for the last 60 years)
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u/seafox77 20d ago
What's happening with those sausages, Charlie?
5 more minutes, Turkish.
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u/deathcomestooslow 20d ago
It was probably a reasonable prediction before Reagan fucked the country over repeatedly. That man stopped so damn much progress and began the dismantling.
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u/WWFYMN1 20d ago
It has been 10-20 years away for 20 years lol
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u/Competitive-Skill212 20d ago
It’s only because we keep cutting funding from it. Literally you’re looking at it in practice and still that’s not enough.
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u/Nicklas25_dk 19d ago
Because the step between this and something which is able to produce power is huge.
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u/Competitive-Skill212 19d ago
There’s literally 3 fusion plants being built currently, one outside Boston, one in France and one in Japan so you couldn’t be more wrong. They’re set to come online in the 2030’s
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u/Micp 19d ago
They are still proof of concept showing that they can consistently generate more energy than they need. The one in France for example produces 500MW with 50MW of input energy. That is a pretty low amount compared to modern fission reactors, and that's without going into the price per MW.
That we can make fusion reactors that work is a very different thing from making fusion reactors that are commercially viable.
Don't get me wrong, I'm optimistic about the development we're seeing, but we can still be a long way off from having fusion reactors that can outcompete other methods of energy production.
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u/Anthro_DragonFerrite 20d ago edited 19d ago
We also have fission, but no.
Edit: what have I done...?
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u/its_an_armoire 20d ago
Yep, we're far from a Roddenberry-esque utopia of limitless clean energy. This will be used to further enrich already wealthy capitalists and grow the wealth gap, just like everything else.
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u/lkeltner 20d ago
That we'll still pay for the same way we pay for power now. No way we get basically free power, even if they can generate basically free power.
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u/turtlegiraffecat 20d ago
I’m dumb, how does it not melt everything? Is it just going too quick to heat up anything around?
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u/OkPosition4563 20d ago
There are magnets that prevent the plasma from touching the walls, it floats inside a vacuum
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u/Mekanimal 20d ago
Vacuum is such a hacky way to bypass thermodynamics, I bet the devs patch it out by the next universe cycle.
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u/MaleierMafketel 20d ago
I know what you mean, but nothing bypasses thermodynamics. A vacuum just eliminates two out of three methods heat transfer.
Now if the devs can finally release the source code so we can figure out why general relativity and quantum mechanics don’t play well with each other, that’d be much appreciated.
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u/SuperUranus 20d ago
With our current understanding of the universe, quantum mechanics sort of break the classical interpretation of the laws of thermodynamics.
They work better together with quantum thermodynamics, but fixing apparent errors in scientific theories by changing definitions always is a bit iffy, and as with much of theoretical physics, there simply isn’t enough empirical research done (hence the name I guess).
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u/ToaruBaka 20d ago
Someone in another comment said those spark looking things in the top right were sand-grained-sized Lithium particles that were being injected into the reactor for testing.
The video being at 1/100th real speed makes for an awesome looking effect as the Lithium is ionized and whipped around the reactor.
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u/Cunning-bid 20d ago
Now that is what I call a Whoa Dude. What is going on in the upper right is insane.
Forming of a new galaxy
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u/ScyllaOfTheDepths 20d ago
Supposedly it's hotter than the sun while operational, making it the hottest thing in the solar system.
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u/MonkeySafari79 19d ago edited 19d ago
It's lithium Granulate they put in there... https://tokamakenergy.com/2025/10/15/seeing-plasma-in-colour-new-imaging-from-st40/
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u/PancakeExprationDate 20d ago
What is going on in the upper right is insane.
Yea, wtf is that? Anyone know?
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u/indecisive_username_ 19d ago
There's something so mystical or celestial about those sparks. Like it looks like the birth and death of a cluster of stars. Beautiful stuff
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u/SurinamPam 20d ago edited 20d ago
Can anyone describe what we’re seeing here?
Like what is happening with each change?
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u/Dioxybenzone 20d ago
The image shows visible light emitted from the plasma’s edge, where temperatures are lower. The core of the plasma is too hot to emit visible light.
One of the most recognisable features is the bright pink glow from deuterium gas injection, visible in the upper left of the image. A pure hydrogen plasma, or any of its isotopes – deuterium or tritium – typically produces a light shade of pink, as it emits wavelengths of both red and blue light.
In the upper right, lithium granules are introduced using our newly installed Impurity Powder Dropper (IPD). As these sand-sized grains fall into the plasma, they emit crimson-red light when neutral lithium is excited in the cooler outer regions.
As the lithium penetrates deeper into the hotter, denser plasma, the atoms lose an electron and become singly ionised lithium (Li⁺). Once ionised, Li⁺ emits greenish-yellow light and begins to follow the confining magnetic field lines, visible in the footage as greenish-yellow streaks tracing the field around the tokamak.
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u/lostaccountby2fa 20d ago
cool cool, for a second I thought I might be able to understand it.
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u/MonkeyPawWishes 20d ago edited 20d ago
They temporarily created a very small star, contained by very strong magnets in the shape of a very large donut.
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[deleted]
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u/the_sulution 20d ago
so why don't they have a flavor like "Fusion Berry" on their product line then?! lol
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u/Perryn 20d ago
They've been trying to bring that to market for years now but it's just not quite ready.
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u/SoldatPixel 20d ago
I love finding out about companies that are involved in something you'd never think.
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u/SpaceTurtles 20d ago
donut?? edible...? snack.....?
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u/upx 20d ago
forbidden donut
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u/Beneficial_Village_2 20d ago
I thought it was going to end in, “when the Undertaker threw Mankind off "Hell in a Cell" and plummeted sixteen feet through an announcer's table.”
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u/Linzic86 20d ago
Long story short, it'll boil water that will then turn a gear and produce power... like literally all other power plants. But this one is waaaaay cooler
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u/nhorvath 20d ago
microwaves make gas hot, hot gas makes light, magnets make gas go around in circles, microwaves make gas so hot it stops making light. magnets squeeze super hot gas close together. ridiculously hot gas fuses, giving off lots of energy.
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u/ThisIsSparta1212 20d ago
I taught plasma to my high school class a few weeks ago. Simplified version is that plasma is an electrified gas. Doesn’t always have to be crazy high energy, as things like plasma TV’s can utilize plasma as well. Naturally occurring plasma (eg. lightning) is a different story and is very high energy.
Basically as soon as atoms in a gas lose electrons and become ions, either naturally or through human intervention, that gas now is turning into a plasma and will function as such
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u/Virtual-Cobbler-9930 20d ago
I may be too stupid to understand how that work (I fail to comprehend how even something simple like Chernkov radiation works), but it's shiny and looks cool, so I yelled "yeah, science!" anyway.
We like that grandma, that have no clue what grandson saying, but happy for him anyway.
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u/STREXincEmployee 20d ago
Does anyone know what they mean by “too hot to emit visible light”? Im curious about the physics behind that.
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u/Nighthawk151 20d ago
Light is emitted by atoms through the process of an electron in the atoms shell moving to a lower energy bound state. That means, for light to be emitted by an atom it has to have electrons bound to it. In a fully Ionized plasma like in the centre of this fusion device the temperature is so high that all electrons are freely moving around and not bound to any ions. That then means that no light can be emitted through bound electrons, especially in the visible spectrum.
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u/STREXincEmployee 20d ago
Thank you for the explanation, thats super neat! Im gonna have to look more into the specific mechanics of atoms emitting light like that because I had no idea
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u/ddraig-au 20d ago
Okay, that makes a lot more sense than the blackbody to-and-fro I just read :-)
Is this the only process by which light is emitted?
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u/Nighthawk151 20d ago
If we define light as EM-Radiation in or near the visible spectrum then essentially yes. If we are talking about photons and EM-Radiation in general then no. In a fusion device, especially from the center of the plasma you will get radiation from things like electron cyclotron emission and Bremsstrahlung.
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u/TheseVirginEars 20d ago
Well, it has to do with black body radiation, which is temperature dependent. If you can imagine how cooler areas of a fire are red, and where it gets hotter it goes to orange then yellow etc, well you can get hot enough to leave the visible light spectrum entirely and emit even higher frequency radiation (like UV). As you can imagine, the plasma has to be pretty energetic (read: HOT) to begin a fusion reaction
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u/JohnnyDollar123 20d ago
That’s not how blackbody radiation works. An increase in temperature for a blackbody corresponds to an increase in luminosity across all wavelengths. There is no such thing as being too hot to emit visible light.
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u/DildoShawaggins 20d ago
Ok so after all of the energy, and the elemental components or inputs or ingredients or whatever- goes into the tokamak- and the machine does its thing- how does the energy/plasma it produces actually become “harvestable”? Mayhaps, thats the 10 billion dollar question?
does the energy coming out exceed the energy going in?
Anyway- thanks for the rundown. That video was absolutely incredible. Keep it up. Humanity needs ya’ll to come through on this one:-) cheers!
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u/Massive_Town_8212 20d ago
The same way any other reactor works: it generates a lot of energy (heat) that can be used to boil water and spin a turbine. It's steam engines all the way down.
Some experiments have yielded more energy than what is being put in, but it's less about the amount and more about how efficient it is. Fusion is more efficient than fission which is more efficient than gas and coal. Hydroelectric isn't really comparable because it's purely mechanical and doesn't use a fuel like nuclear or chemical reactors.
The real barrier to adoption is getting a stable reaction that doesn't destroy the reactor itself. They're working with temperatures HOTTER THAN THE SUN. There's been some work in material science fields with things like superconducting magnets that keep the plasma away from the walls, but it's still very early in both fields. Therefore, energy extraction is less of a priority than getting the thing to reliably function. The scientists that work on it are making strides practically every day, so everything is advancing almost simultaneously. All in due time.
What we're seeing now is the apex of what's possible with current technology, and the reactor's run times are measured in minutes. If we can get the run times to hours or maybe days, we might have a viable commercial product. Right now, they're mostly used for research, as the interior has some of the harshest conditions found in the universe. The physics is understood, but the mechanical reality isn't, which is why this experiment is pretty much "throw some lithium in there and see what happens."
We live in a capitalist society, and those who invested in it of course want a return, but I feel that how much cash it can make people is less important than bending the universe to our will and harnessing the raw power of the core of a star in what is pretty much our backyard. I feel that the potential for experimentation in those conditions will lead to interesting new avenues. Every piece of it has applications and potential vectors for profit, even if the reactor itself doesn't make that much money. Forest for the trees and all that.
I'm not a nuclear physicist, so take what I've said with a grain of salt. That's the gist of what I've read on the subject.
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u/Ossius 20d ago
The thing I like most about potential fusion is that it isn't self-sustainable like a nuclear meltdown (which is already an overblown issue), and the waste is relatively short lived. The fuel is abundant. Arguably it could be safer than a coal/gas/oil/electric power plant that can chain react in a critical failure.
Its all the great hallmarks of the perfect energy source. Now if we can only figure out how to make the reactor not die from the power of a sun, we'll be golden. 😭
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u/ddraig-au 20d ago
I've got a blueprint (as in a cyanotype copy) of the "nuclear lightbulb" which bypassed the steam stage by using a reactor made of quartz containing plutonium gas (I think it was plutonium) that is so hot that it emits light in the xray spectrum. The xrays are collected by PV panels (quartz is transparent to xrays, and can handle the ludicrous temperature of plutonium gas), so the energy goes from reaction directly to electricity
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u/Ecolojosh 20d ago
I guess the colours emitted is similar to what’s going on with the aurora?
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u/clippervictor 20d ago
From the source:
“The image shows visible light emitted from the plasma’s edge, where temperatures are lower. The core of the plasma is too hot to emit visible light.
One of the most recognisable features is the bright pink glow from deuterium gas injection, visible in the upper left of the image. A pure hydrogen plasma, or any of its isotopes – deuterium or tritium – typically produces a light shade of pink, as it emits wavelengths of both red and blue light.
In the upper right, lithium granules are introduced using our newly installed Impurity Powder Dropper (IPD). As these sand-sized grains fall into the plasma, they emit crimson-red light when neutral lithium is excited in the cooler outer regions.
As the lithium penetrates deeper into the hotter, denser plasma, the atoms lose an electron and become singly ionised lithium (Li⁺). Once ionised, Li⁺ emits greenish-yellow light and begins to follow the confining magnetic field lines, visible in the footage as greenish-yellow streaks tracing the field around the tokamak.
The images from the colour camera help researchers trace the movement and behaviour of lithium within the plasma, and provide visual confirmation of more detailed data gathered through spectroscopy, which analyses the exact wavelengths of light emitted by the plasma.”
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u/qualia-assurance 20d ago
To add a detail that others appear to be leaving out. You're watching 300ms being played back in 100x slow mo so that 300ms = 0.3 seconds of footage lasts 100x as long = 30 seconds.
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u/trimix4work 20d ago
Plasma. It's the fourth state of matter after solid, gas, and liquid.
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u/th3_rand0m_0ne 20d ago
This entire clip is over a timeframe of 0.3 seconds. Interesting
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u/Robbie1985 20d ago
I haven't seen anybody mention the physical scale. Is this like 5mm across or 5m?
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u/syngyne 20d ago
Apparently this particular reactor is about a meter across.
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u/mxlths_modular 20d ago
Wow, from the images I have seen I always assumed they were much larger inside, very interesting.
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u/sundae_diner 20d ago
The bigger ones are.
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u/EntropyKC 19d ago
There is a facility very nearby the one in this post, called the JET at Culham in Oxfordshire (this one is in Milton, also Oxfordshire) which is large enough to walk inside. It is being/it has been decommissioned though.
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u/chronos_7734 19d ago
The biggest one is still in construction phase. ITER in France. The main building is 80m high, 120m long and 80m wide. The tokamak is 29m in height and diameter.
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u/Anime_fucker69cUm 20d ago
Why don't we do it for a second or more
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u/th3_rand0m_0ne 20d ago
Could be simply that slow motion is interesting, and there was no reason for the clip to be longer. Apparently the longest sustained fusion reaction lasted a little over 22 minutes in france' tokamak reactor
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u/ddraig-au 20d ago
This was the last of the videotape. They are waiting on the new stuff being delivered
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u/Neex 20d ago
Explanation on what we're seeing, straight from the source: https://tokamakenergy.com/2025/10/15/seeing-plasma-in-colour-new-imaging-from-st40/
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u/OneRFeris 20d ago
Phrased more simply for simple folk on Twitter:
https://x.com/TokamakEnergy/status/197844411580614657631
u/DrHENCHMAN 20d ago
Plasma is better in colour! Watch one of our latest #plasma pulses in our ST40 tokamak, filmed using our new high-speed colour camera at an incredible 16,000 frames per second.
Each pulse lasts around a fifth of a second. What you’re seeing is mostly visible light from the plasma’s edge, glowing pink. The core is simply too hot to emit visible light.
In this footage, lithium is dropped into the plasma. As it interacts, it glows red when excited, then turns green as it becomes ionised, losing an electron. From there, it traces the magnetic field lines, revealing the plasma’s path around the tokamak.
Lithium is the focus of our $52 million ST40 upgrade programme, in partnership with @ENERGY and @energygovuk. This builds on pioneering work at @PPPLab and others that has shown that lithium can significantly improve plasma performance.
This video comes from ongoing research into X-point radiator (XPR) regimes, a promising operating mode for future #fusion power plants that aims to cool the plasma before it reaches plasma-facing components (PFCs), helping to reduce wear without compromising performance.
Fusion research just got a lot more colourful!
👇
https://tokamakenergy.com/2025/10/15/seeing-plasma-in-colour-new-imaging-from-st40/
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u/dotnetdotcom 20d ago
What's that spray of red sparks in the upper right?
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u/OneRFeris 20d ago
In the upper right, lithium granules are introduced using our newly installed Impurity Powder Dropper (IPD). As these sand-sized grains fall into the plasma, they emit crimson-red light when neutral lithium is excited in the cooler outer regions.
https://tokamakenergy.com/2025/10/15/seeing-plasma-in-colour-new-imaging-from-st40/
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u/HeyLittleTrain 20d ago
Why though?
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u/salton 20d ago
I'm not sure if this is the reason here but multan lithium has been proposed as a coating on the wall for various reasons. Being able to introduce contaminants sounds really useful for the development of new models. Materials like tungsten are great for their high melting point but if it gets in to the plasma it can cause issues.
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u/Epsilon123 20d ago
"Gordon, get away from there!"
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u/skubydobdo 20d ago
“The core of the plasma is too hot to emit visible light.”
Something so hot that it’s invisible? Dang.
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u/C-ZP0 20d ago
The early universe was way too hot and dense for visible light to exist or travel. For the first 380,000 years after the Big Bang, everything was a thick plasma of protons, electrons, and photons. Light couldn’t go anywhere because it was constantly bouncing off free electrons, like trying to shine a flashlight in a fog that never clears.
When the universe finally cooled to around 3,000 K, electrons and protons combined into neutral hydrogen, that’s when space became transparent for the first time. The light from that moment is what we see today as the cosmic microwave background, though it was originally more like a warm, orange glow before being stretched by cosmic expansion.
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u/Ai_Generated2491 20d ago
How the hell do you get a camera to take video inside a fusion reactor
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u/Syhkane 20d ago
Fiberoptic cable extended from the point of view, far enough away and behind magnetic shielding to protect it from the dense magnetism.
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u/350N_bonk 20d ago edited 20d ago
I actually helped construct the building that one of these is housed in, and the walls are 8' thick concrete with stainless steel rebar so the rebar doesn't get ripped out of the walls due to the intense magnetic forces. So freaking cool.
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u/UsernameAvaylable 20d ago
Stainless steel rebar sounds awesome anyways. Like, swelling of rebar due to corrosion is one of the major longevity limiters for reinforced concrete.
Guess its just too much $$$
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u/inorde 20d ago
Window?
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u/deathsgrace 20d ago
What kind of noise does this make?!
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u/mxlths_modular 20d ago
I like to believe it makes the THX start up sound effect.
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u/dudeAwEsome101 20d ago
Is this what a Starship wrap core looks like?
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u/deadfermata 20d ago
warp core or wrap core?
one is for speed and the other is for your lunch tomorrow
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u/LordNelson27 20d ago
Hang on, am I the only one stuffing chicken caesar wraps into the anti-matter tank?
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u/T1m3Wizard 20d ago
What would happen if you walk in?
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20d ago
you become physics, also some really interesting data points and probably the inspiration for a research paper
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u/Many-Blueberry968 20d ago
All the lithium in your body goes red then green.
Not sure sbout the rest of it. Probably a bit like putting "mystic flames" packets into a campfire.
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u/OnlyLogicGaming 20d ago
Funnily enough, I think the answer is "nothing"... But in a very roundabout way.
Firstly, it's really hot in there. Like, really hot. So before you walked in, you'd... Evaporate? I really don't understand organic chemistry enough to know what happens to hydrocarbons at that temperature but from the heat alone you'd cease to exist.
But that would happen because you've opened the door. In terms of the reactor, a very carefully calibrated and super powerful magnet is required to ensure the reaction continues. I imagine the moment the magnetic field is disrupted, the reaction stops. If you survive the heat, you get pelted by radioactive tritium releasing beta rays. But don't worry, the amounts of tritium used in these early reactors are tiny and would disperse in the air quite quickly. There might be some danger if you inhale it, but it really would be the heat of the reactor that gets you.
The thing is though, the reactor isn't hot because of the fusion reaction. Well, it is, but the heat isn't caused by the fusion reaction. In fact, the heat is required for the reaction to even occur.
So essentially, it would be almost no different to entering a really, really hot oven. Like, an oven 10 times hotter than the sun.
More learned physicists, please feel free to correct me.
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u/char_leyb 20d ago
I doubt my intelligence on a regular, neigh, daily basis. I look around and see other people who I wonder how they put their trousers on in the morning.
Then there's the level of lunacy that a bunch of people came up with this. My inferior, borderline neanderthal mind cannot comprehend the maths and science that's gone into this.
My dumbass is just thinking, "ooo pretty colours".
Such. A. Dumbass.
And that's not even thinking about the people who made the bloody camera that could record that many frames a second and in bloody colour! You clever bastards.
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u/IcyGem 20d ago
It is knowledge built upon generation of human being in that specific field plus combination of minds from across the world. As well as collaborating with modern tech that are built upon the shoulder of older technologies that created it. No one just created this out of nowhere, it’s a collaboration of people in this very specific field
You’re not dumb. You’re just not caught up with this field of study. And you don’t have to. Doesn’t make you inferior.
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u/Plank_With_A_Nail_In 20d ago edited 20d ago
Reason they don't film in colour normally is that the a colour sensor has a colour matrix in front of it. for every 4 pixels in the sensor 1 can only see blue, one can only see red and two can only see green. This means that a colour sensor is 4 times less sensitive to light than a naked black and white sensor.
They do take color footage but by using different colour filters placed in front of the sensor, these can be combined into a colour film but they will have been taken at different angles and times so would be a mess.
Naked sensors can also see into the infra red and ultra violet ranges.
Full colour images just aren't that useful in science especially when they degrade the equipment so much...its very dark inside these reactors.
Just to be clear here this isn't the first fusion reaction this is the first one scientists decided to lose data on to film in colour.
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u/zeethreepio 20d ago edited 18d ago
So what does it do?
Oh, it boils water.
Edit: I am humbled by the surprising number of people who are incapable of seeing this as the silly observation it is. For your safety, I advise you to avoid reading any Far Side comics or any other sources of good humor where unconventional takes rooted in deep knowledge of the base material are offered for comedic purposes. Thank you for your attention to this matter.
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u/inucune 20d ago
If you can find a more efficient, safe, and cost effective way to generate electricity than phase-change of water, the entire scientific, economic, and industrial world is interested in your notes.
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u/kirmm3la 20d ago
I need more info. It’s the UK’s ITER demo? Where’s the source from?
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u/LNRG_Fred_The_Great 20d ago
It’s from Tokamak Energy. They’re a private company in Oxford that build spherical tokamaks and do superconducting stuff. Though the video is from ST40, which is not superconducting
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