K. Ferdinand Braun
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Karl Ferdinand Braun was a German applied physicist who shared the 1909 Nobel Prize in Physics with Guglielmo Marconi for their contributions to the development of radio. With his two circuit system,
The house in Fulda, Germany, where Braun was born
An early resonant transformer invented by Braun used in the coherer radio receivers in wireless telegraphy radio systems made by the Telefunken company in 1903
Braun's two circuits to send and receive
Invention of radio
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The invention of radio communication was preceded by many decades of establishing theoretical underpinnings, discovery and experimental investigation of radio waves, and engineering and technical deve
A French ship-to-shore radio station in 1904
Joseph Henry
Michael Faraday
Hans Christian Ørsted