Turning two superconducting cables responsible for the generation of these magnetic fields, together with one of the copper cables, a cable with increased resistance to heat fluctuations is obtained. The cable folding process together can be carried out until a sufficient massive cable necessary for the thermonuclear reactor is obtained. It also turns out that when you increase the height (or length along the copper spiral) of these two interweaving, the cable becomes more effective in the heat of heat. And so you can maintain a thermonuclear reaction.
