Monthly Archives: January 2013

James Clerk Maxwell

Can electric charge exist in the absence of a charged particle?

Up until the 1820’s the only magnets that were known were lodestones and magnets made of iron such as compass needles.  Then in 1820 Hans Christian Oersted was conducting a demonstration of the heating of a wire by means of an electric current.  Coincidentally he also planned a demonstration of the effects of magnetism for […]