Summary: <br> <br> A discussion of the<br> basic concepts of magnetism, including magnetic fields, magnetic poles, and<br> electromagnets. I also discuss the ultimate subatomic source of magnetic force<br> in the phenomenon of electric spin, and explain how this leads to the different<br> types of magnetic materials: ferromagnets, paramagnets, and diamagnets. I<br> conclude with some applications of electromagnetism, including electric<br> generators and motors, transformers, and a brief discussion of Maxwell's<br> equations. Recommended prelistening is Episode 43: Electric Forces and<br> Fields. <br> <br>
