REM@MIT-MC (11/07/82)
Forwarded with permission: Date: 7 November 1982 1530-EST (Sunday) From: Kevin.Dowling at CMU-10A To: Robert Elton Maas <REM at MIT-MC> I agree that the metallic foam is of more than scientific interest, but I also think the magnetic material experimiment could be of immense valuetoday samarium-cobalt magnets have the highest flux density to mass ratio (at least of the commercially available magnetic materials). The experiments to produce even more powerful magnetic materials could result in lighter, even more powerful motors. Direct drive robots (such as those at CMU and the ones being developed at MIT) would be even more workable, not to mention general purpose motors.