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Sungook Hong

Sungook Hong is Associate Professor at the Institute for the History and Philosophy of Science and Technology at the University of Toronto.

Titles by This Author

From Marconi’s Black-Box to the Audion

By 1897 Guglielmo Marconi had transformed James Clerk Maxwell's theory of electromagnetic waves into a workable wireless telegraphy system, and by 1907 Lee de Forest had invented the audion, a feedback amplifier and oscillator that opened the way to practical radio transmission. Fifteen years after Marconi's invention, wireless had become an essential means of communication, as well as a hobby for many.