Might be feasible. You only need enough liquid nitrogen to keep the superconductor cool for a minute. Apparently, the Holbrook supercondcutor Project (http://en

Might be feasible. You only need enough liquid nitrogen to keep the superconductor cool for a minute. Apparently, the Holbrook supercondcutor Project (http://en.wikipedia.org/wiki/Holbrook_Superconductor_Project http://en.wikipedia.org/wiki/Holbrook_Superconductor_Project) has been using superconductors in the Long Island power grid for years. > (Yes, I know what you're about to say). Please don't do this. If you know what the 'obvious' objections are, please say what they are. People unsure what the reasons for not doing so learn something. I'm certainly not aware of all the problems involved in using superconductors.