From: utzoo!decvax!harpo!seismo!rocheste!heliotis Newsgroups: net.physics,net.space Title: Re: the ultimate rocket Article-I.D.: rocheste.209 Posted: Tue Nov 9 13:01:08 1982 Received: Wed Nov 10 02:42:07 1982 References: utzoo.2587 I had been taught that magneteic monopoles do not exist, by definition of magnetism. (Something about what happens to electric fields when relativity is taken into account). Can anyone confirm or contradict this? Jim Heliotis