The higher temperature is a substitue for the much higher pressures in the Sun's core. For fusion you need atoms to bump into each other with enough energy. One way of making this more likely is to increase the temperature. The other way is to put more stuff in the reactor and increase the pressure. Both make it harder to contain the plasmas which are reacting so you need a balance.
Time to go to work
two pages of memes and not one image of an actual device. shame. they call this wild looking thing a stellarator (wendelstein 7-x), i guess it is similar to a tokamak in that it confines plasma, but what do i know.
Similar concept in that it uses magnets to confine the plasma. However scientists theorise that the wack shape would be superior for the flow of the plasma, as opposed to the "nice looking" tokamakstwo pages of memes and not one image of an actual device. shame. they call this wild looking thing a stellarator (wendelstein 7-x), i guess it is similar to a tokamak in that it confines plasma, but what do i know.
Holy shit it's so complextwo pages of memes and not one image of an actual device. shame. they call this wild looking thing a stellarator (wendelstein 7-x), i guess it is similar to a tokamak in that it confines plasma, but what do i know.
two pages of memes and not one image of an actual device. shame. they call this wild looking thing a stellarator (wendelstein 7-x), i guess it is similar to a tokamak in that it confines plasma, but what do i know.
Magnetic fields and the reaction stops immediatly when it would touch the walls.
It was deemed imposibble until current super computers where powerful enough to calculate this form.
Sam Raimi is a republican, so it's not surprising that he made a movie demonizing green energy.
Tiny shrimp creates temperatures hot as the Sun
Tiny shrimp creates temperatures hot as the Sun
Janine Benyus, founder of the biomimicry institute, explains how a pistol shrimp stuns its prey -- in a most surprising manner.www.zdnet.com
Super. Sounds great
Breh, we've already gone Over this. Looks like I'm deleting that comment so people stop pinging me.
can't wait to hear how well it performs
Didn't all designs thus far eventually fail because, despite how careful one might be during design and construction, any minute error will cause cascading inefficiencies, eventually leading to the system not reaching breakeven point?
Here's an image of the ITER tokamak. The actual fusion happens inside the orange vessel.
Like I said previously, shit's hard.
Fusion is not a self perpetuating reaction like fission. When you cut power to it the reaction stops.
This is what I was looking for. Thank you
can't wait to hear how well it performs
Here's an image of the ITER tokamak. The actual fusion happens inside the orange vessel.
Like I said previously, shit's hard.
The plasma needs to be encased and heavily controlled because it is not self sustaining (, the main problem right now is being able to maintain it for long enough for the energy to power it up and sustain it is less than the energy we can make out of it while activated). If there is a meltdown, it would burn out very fast and end up without that much harm.
Melted stuff? Wouldn't these temperatures vaporize everything around them and have liquid metal condense all over the place?
There isnt enough fusion material when compared to the size of the machine to completely vaporize everything. In the end it is all about the heat needing to go somewhere to create "stable" temperature, and in this case there isnt that much reaction that would self-feed and increase the rate of reaction (which is the problem with fision).
And once miniaturized, iron man style suits is right around the corner.
Yup. Glad it only took five posts.
can't wait to hear how well it performs
Yes, there is a set amount of time the reactor would need to be operational for it to produce net energy (more energy than put onto it to start + maintain), but it hasnt been reached due to difficulties on maintaining the stream, and high temperatures meaning they need to power down to avoid damaging the reactor. The time has been creaping up slowly, with a big jump "recently" when they started using computers to figure out more optimal designs for the plasma stream.
If they released the plasma, I wonder what kind of damage it would cause? I suppose it depends on the amount of plasma, which would determine the total amount of energy released?
This reactor is part of the ITER project.
Fission reactors are amazingly simple, at least in concept.
I'm not sure of the details, but I know that they're building ITER so big because they think it'll help stabilizing the plasma.
Congress passed a law that ban any and all collaboration between NASA and Chinese national.
It will dissapite almost immediatly, it might be able to damage the magnets holding it maybe, I'm not sure, but it's not going to be a ball that go through the earth or anything, nor is will it react with anything really.
Yes, there is a set amount of time the reactor would need to be operational for it to produce net energy (more energy than put onto it to start + maintain), but it hasnt been reached due to difficulties on maintaining the stream, and high temperatures meaning they need to power down to avoid damaging the reactor. The time has been creaping up slowly, with a big jump "recently" when they started using computers to figure out more optimal designs for the plasma stream.
I think the current operational record is the Wendelstein 7X with around 100s.
Edit:
https://www.iter.org/sci/Goals
Milestones around the world
Producing fusion energy, it soon became clear, would require marshalling the creative forces, technological skills, and financial resources of the international community. The Joint European Torus (JET) in the UK, in operation since 1983, was a first step in this direction. JET, which is...www.iter.org
troll physics that workThis reactor is part of the ITER project.
I was pleasantly surprised the Trump adminstration did kick China out of it, they have been trying to kill every scientific cooperation between China and the west, and I suspect it would have been super easy to scare americans about omg nuclear technology. Plus Rick fucking Perry was heading the Department of Energy and I generally just expect the worst decisions from him.
Fission reactors are amazingly simple, at least in concept.
This is pretty much how they work, for real. Making them safe an efficent took a lot of time and effort, but it wasn't hard to get a basic one to work.
Fusion is a much more difficult problem, both from a theoretrical and practical perspective.
