I'd use it for making my own SQUIDs[1], as a start. There are a number of experiments I want to do, and things I want to understand[2][3], and not having to hav

I'd use it for making my own SQUIDs[1], as a start. There are a number of experiments I want to do, and things I want to understand[2][3], and not having to have cryogenics keeping the detectors cold would be helpful. I'd also like to use this for antennas, transmission lines, and tuned cavities.[4] There are a lot of things you could do at VLF frequencies[5] that require long, long wires... with lots of resistance, unless you have a defense budget, the resistance eats into efficiency. Superconductors could help deal with that. [1] https://en.wikipedia.org/wiki/SQUID https://en.wikipedia.org/wiki/SQUID [2] https://en.wikipedia.org/wiki/Aharonov%E2%80%93Bohm_effect https://en.wikipedia.org/wiki/Aharonov%E2%80%93Bohm_effect [3] https://en.wikipedia.org/wiki/Longitudinal_wave#Electromagnetics https://en.wikipedia.org/wiki/Longitudinal_wave#Electromagne... [4] https://en.wikipedia.org/wiki/Superconducting_radio_frequency https://en.wikipedia.org/wiki/Superconducting_radio_frequenc... [5] https://en.wikipedia.org/wiki/Very_low_frequency#Amateur_use https://en.wikipedia.org/wiki/Very_low_frequency#Amateur_use