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The wave and particle theory of light - Ostronomos - Jan 3, 2023
The ancient Greeks as I explained, are responsible for much of what we call modern science. They've given us a premature concept of atomism, the elements and even visual perception, which was proven to be false when the Arab influences in the 11th century, gave us a better understanding of lenses and mirrors.
Sir Isaac Newton and Christian Huygens competed for the wave versus particle theory of light. But it was Thomas Young (born circa 1773) who, in the first double slit experiment, established the wave theory to be correct. Thomas Young was a wealthy doctor who turned his mind to everything from the elasticity of materials to deciding on insurance premiums. He was a notable figure in History.