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1905 – photoelectric effect

Maxwell‘s equations showed that light, electricity and magnetism all had similar wave characteristics and suggested that light was a variation of the electro-magnetic wave form. If this was true, light and other electro-magnetic waves impacting metal would cause a flow of electric current in the metal. At the time, scientists were using electrified glass tubes […]

1873 – electromagnetic waves

In 1873, James Clerk Maxwell published a textbook called, “A Treatise on Electricity and Magnetism” which compiled all known electromagnetic theory at that date including some of his previous work on equations related to electricity and magnetism. Maxwell theorized that light was an electromagnetic wave and tied together light, electricity and magnetism which had been […]