Talk-Polywell.org

Hah-hah! :lol: Don't pick me, the most challenging device I ever built was a potato gun! Hmm, I remembered MSImon having dismissed superconductors as impractical for a small machine size. Looking back, it seems like I misremembered. Apparently it didn't have to do with scale, so much as economics p...

Ok, so what's preventing the use of superconducting coils in a set-up on the scale that Dr. Nebel is working with? There are superconductors that need only LN2, not helium. In a reactor the size we are talking about, all you'd need would be a (single-turn?) superconducting coil inside a cooling jac...

I was actually thinking more of somethying a bit more solid. That's why I mentioned the ceramic beads as a way to position the windings before casting the whole coil into a solid block of ceramic clay. I'm not familair with the strength of a semisolid block of ceramic, but that's for another study ...

Where are you buying your liquid helium? I think that's cheaper than we can buy liquid helium in bulk, for our big tank! Otherwise, a clever approach. I would not discount the possibility of doing it with other superconductors over copper, or for that matter, high temperature superconducting powder...

Were ceramic able to be cast around copper wire to the same degree of thickness as the existing magnet wire insulation it would not be sufficiently strong to withstand the slightest jostle. Were it cast with sufficient thickness to be structurally sound, the spacing between wires would be excessive....