eng Science and Education Publishing International Journal of Physics 2333-4886 2014-08-17 2 4 118 123 10.12691/ijp-2-4-5 IJP2014245 article Hans-Joerg Hochecker jo.hoer@yahoo.de 1 Donaustr. 22, 30519 Hannover The magnetic force can be described very simply as a result of relative velocities of electric charges. Transformations in inertial reference systems are very well described by special relativity. However, magnetism nevertheless is simply regarded as given. There isn't an explanation for the emergence of magnetism yet. I have found a quite simple way to explain the emergence of magnetism, that is, I have discovered, how the electric field changes so that magnetism is created. I would like to introduce this idea here. http://pubs.sciepub.com/ijp/2/4/5/ijp-2-4-5.pdf special relativity electric field magnetism