Hello all, Superconductors are great, but obviously its tricky to keep them at such a low temperature for extended periods of time. This poses a problem for engineering applications. What about the feasibility of cooling the superconductor, then placing the material in a vacuum chamber. Less collisions = less thermal energy. Shield the walls from radiation loss using suitable absorption such as lead or other, perhaps install a 2nd vacuum layer (double glazing as such), and voila - sustainable superconductors. Not much can be done about dark matter or neutrinos, but as far as i'm aware they don't really interact with matter much anyway. Thoughts?