Whose equations first described the motion of light and electricity as one force?
Quick Answer
James Clerk Maxwell unified electricity and magnetism in the 1860s. His equations showed that light is an electromagnetic wave.
The Full Story
James Clerk Maxwell developed his electromagnetic theory in the 1860s, with the final form of the equations published in 1864 and 1865. His work linked electric and magnetic fields into one unified description. From his equations, he calculated that electromagnetic waves should travel at the speed of light, leading him to identify light as an electromagnetic wave. Maxwell’s theory transformed physics and laid the groundwork for modern radio, optics, and field theory.
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