Portrait of James Clerk Maxwell Image digitized by J.C. Max, Inc. from engraving by G.J. Stoddard from photograph by Fergus of Greenock appearing in "The Life of James Clerk Maxwell" by L. Campbell & W. Garnett (published in 1882).

James Clerk Maxwell was a Scottish physicist who lived between 1831-1879. He studied Saturn's rings and suggested that they were composed of solid particles. This theory was confirmed 100 years later by the Voyager 1 space probe.

Maxwell is most famous for his equations linking electricity and magnetism. His revolutionary work lead to the development of quantum physics in the early 1900's and to Einstein's theory of relativity.