The short version is that using a tokamak like structure you can build a device to accelerate plasma, and with that, when you throw it out the back of your rocket, you get thrust. Really high velocity thrust, like 20kM/sec. Depending on the gas used, you could set up some pretty high thrust there.
The short version is that using a tokamak like structure you can build a device to accelerate plasma, and with that, when you throw it out the back of your rocket, you get thrust. Really high velocity thrust, like 20kM/sec. Depending on the gas used, you could set up some pretty high thrust there.
And as a bonus you can throttle it up and down!