Physics professor: Some scientists claim that superheated plasma in which electrical resistance fails is a factor in causing so-called ball lightning   If this were so, then such lightning would emit intense light and, since plasma has gaslike properties, would rise in the air  However, the instances of ball lightning that I observed were of low intensity and floated horizontally before vanishing
Thus, superheated plasma with failed electrical resistance is never a factor in causing ball lightning
Superheated plasma in which electrical resistance fails does not cause types of lightning other than ball lightning.