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David E. HughesDavid E. Hughes (May 16, 1831 - January 22, 1900) was an accomplished musician and a professor of music as well as chair of natural philosophy at St. Joseph's College in Bardstown, Kentucky. He was also an experimental physicist, mostly in the areas of electricity and signals. He invented the carbon microphone and the induction balance and was the first to transmit and receive radio waves. Despite his facility as an experimenter, he had little mathematical training. He was a friend of William Henry Preece. External link Hughes, David E. Hughes, David E.
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