Since that time, we've developed extremely powerful lasers, higher-temperature superconductors, and incredibly powerful rare-earth magnets.
... and of course Researchers who would rather chase unicorns and pet theories than actually produce a result to keep their coffers full of government tax monies...
6,237 posted on 05/19/2019 9:29:43 PM PDT by Dead Corpse
(A Psalm in napalm...)