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Tesla, quacks and violet rays

Probably best known now as the name of a high-spec electric car, the original Tesla was a hugely influential engineer and inventor. Find out how a whole quack industry in ‘violet ray’ therapy was developed from one of his greatest discoveries.

Words by Surya Bowyer

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About the author

Photograph of Surya Bowyer

Surya Bowyer

@suryabowyer

Surya Bowyer is a writer and educator from London. He is interested in the intertwined histories of media and technology.