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Which physicist shared the 1909 Nobel Prize in Physics with Guglielmo Marconi?
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Guglielmo Marconi
Italian physicist Guglielmo Marconi, shown here about 1908, invented a successful wireless telegraph (that is, a radio) in 1896.
Guglielmo Marconi shared the 1909 Nobel Prize in Physics with the German physicist Ferdinand Braun.1
The Nobel committee recognized both men for their contributions to the development of wireless telegraphy. Specifically, Braun was honored for his improvements to Marconiās transmitting system, including the development of a sparkless antenna circuit that significantly increased the range of wireless communication.1