Added: 4 years ago
From: stevebd1
Views: 14,950
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  • I love how the tokamak makes the noise of a water boiler ^^

  • when was this aired on the discovery ch?

    i feel like the discovery ch as well as the history ch show nothing but shit now

  • YAY BRITION ACCOMPLISHED SOMETHING GOOD FOR THEM!!!!

  • The one question I have about this tower is why the greenhouse section is not filled with sea water. Water vapour is less dense than air so it would rise up through the tower. Then the distilled water would rain down in the immediate area creating a microclimate. The the high salt content water could then be either sold to Indonesia or the magnesium chloride could be sold to magnesium processors (perhaps using the electricity from the tower) or returned to the ocean.

  • even australila is smarter and cleaner than america

  • In Australia they're tapping the Sun...

    In Britain, they're creating the Sun. XD

  • wtf..how did the place a camera in side that shit..was it PLASMA PRoof..

  • down side = water runs out xDDD

    need to make water or it will run out

    water is a fosile fuel (its used up in the fusjon prosses)

  • I love Fusion power! I'm almost obsessed with it! but the thing that has me worried is if fusion is 1,000,000 times more powerful than fission, then what would a fusion bomb be like? there would be no fallout radiation, but there wouldn't be very many people to care about that stuff anymore...

  • There are fusion bombs.

    Thermonuclear bomb (H-bomb).

    But they still need fission reaction to ignite the fusion.

  • 150 million degrees, and the camera doesn't melt? 8:47

  • This video doesn't do a good job of explaining the reactor fully. It uses magnets to prevent the plasma from ever touching the walls.

  • i was just gonna say that.

  • that's because the heat is limited to the magnatised area of the reactor

  • to create fusion, you need electricity, lot of it, right? how do you get electricity? you can't store high power electricity! it's dilenma, lol. in other words, not efficent way to get energy from fusion.

  • You can, it's just that fusion currently doesn't produce enough power to maintain the magnetic fields needed to sustain the fusionr reaction.

  • I've a question if som1 can explain for me!!

    EHm i do not quite understand how they are able to achieve that kind of themperatures??

  • Those temperatures are possible because the plasma is suspended away from the walls of the reactor by a magnetic force field. Because it never touches the walls, it doesn't conduct away its heat. I have an introductory video about fusion on youtube myself if you are interested. Just click on my name and it will go to it. I would argue that producing energy by this means is the single most important issue facing the world.

  • But I still don't understand..

    Because a lightbulb also gives off its heat.. so

    But maybe it's not the same as the plasma in the magnetic field.. could you explain plz??

  • Two things are happening. 1.) The plasma is nearly in a complete vacuum, and it is being held away from the walls by the magnetic field. Because there is a kind of vacuum barrier between the plasma and the wall this means that the particles can't bump into each other and transmit their energy to the wall. 2.) A large amount of heat is lost to the walls in the form of Bremsstrahlung radiation (or radiation of acceleration of charge). This does represent a mechanism for loosing heat.

  • To compensate for the heat losses there are numerous ways of heating the plasma. Neutral beam injectors for instance, are a technique where by a compact particle accelerator accelerates charges particles to really high energies than near the exit port neutralizes them. The exit port leads to the plasma. When the neutral beam hits the plasma it undergoes a number of collisions and transfers its energy to the plasma. These auxillary forms of heating counteract losses.

  • The ultimate way to heat the plasma however it by its own source inside the plasma, nuclear fusion. If you can use auxiliary methods to get the temperature initially hot enough then the plasma can take over compensating for loses by nuclear reactions which give off tremendous amounts of energy. While fusion has occurred in these smaller experiments, the volume of the plasma has always been too small for the nuclear reactions in the plasma to compensate for losses.

  • This is precisely why you need a big experiment like ITER to compensate for these losses. Scientists have known this since 1970's, so doing this experiment is long long overdue. By the way, that is a great question and it really cuts to the heart of the fusion energy research. I am glad there are interested people like you out there. Contact your congressman and let them to increase federal fusion research funding. It is needed now more then ever.

  • Ty very much, lad.

    I appreciate that you explained this to me.

    I understand the actions inside the fusion reactor a lot more now.

    I'll see if i can talk to some1 about this.

    Or to donate or something. I'm sooo rinterested in physics,chemistry and maths, so..

    I'm just happy i'm able to live long enough to see this kinda stuff happen and maybe in the future things will be more like Starwars and that kinda stuff, because we are humans.

  • No problem. You should consider studying nuclear engineering or physics in school. There is a real need for smart young people to help figure fusion out. As for Starwars, absolutely. Fusion is the only form of energy which could take us to planets outside of our solar system, and allow humans to begin colonizing space. For this reason, I think fusion is one of the coolest fields of study. I am actually working on a PhD in fusion at DIII D tokamak reactor in San Diego, California.

  • It's gonna be within 15 years, the first working Stable reaction tokamak!!!!, I have a friend that is a plasma physicist and he says that this research is WAY above projections!!

  • I know it is no more than 15 years off and thats the field I wanna get into. hope Im not too late b/c it'll be a while before Im in it with anything to contribute.

  • i don't believe so, this is the prime time to get involved, this is where the really exciting stuff will happen!!!!.

    There is another proposal that uses some kind of inherent electrical field to contain the plasma rather than magnetic fields..you know out about this?

  • This is just stunning!!!!.

    that first idea, so simple, very few moving parts.....awesome!!!!.

    I have seen the development of the spherical tokamak, very kool!!!!!!. Much more efficient than the old elongated toroidal tokamaks!.

    It is nice to see longer reactions too, can't be long now till they have a stable ongoing reaction?

  • AWESOME X c

    Bravo!!

  • where is the second half of the video?

  • Awsome clip! Thanks for uploading!

  • Those Aussies may look silly.....

  • WTF!!!!! :| I WILL MISS THE FUTURE FFS!... Who knows World will be Distroyed

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