ipplications, these objections fade away. Well-trained personnel will be available. Fhe higher cost of superconductors compared to ordinary coils will make little difference compared to space transportation costs. High technology will be the order of he day. Superconducting magnets usually use no iron, a fact which would give a weight advantage for transportation to and for use on the Moon. Once a supercon- lucting magnet is charged, it can be moved anywhere without its power supply. A refrigerator is needed, though, and once the magnet is turned off, the power supply
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