IIRC the story (I heard it second hand) he got a very nasty burn around his wrist. He was quickly moving a conductive loop through a very strong magnetic field

IIRC the story (I heard it second hand) he got a very nasty burn around his wrist. He was quickly moving a conductive loop through a very strong magnetic field with a crazy large gradient. (I'm not a physicist, but I assume that's the explanation for the burn.)