Karl Ferdinand Braun - Wikipedia

Thank you my friend Maj Marty Hogan for reminding us that June 6 in the anniversary of the birth of German inventor, physicist and Nobel laureate in physics Karl Ferdinand Braun.

Background from nobelprize.org/nobel_prizes/physics/laureates/1909/braun-bio.html
"Karl Ferdinand Braun was born on June 6, 1850 at Fulda, where he was educated at the local "Gymnasium" (grammar school). He studied at the Universities of Marburg and Berlin and graduated in 1872 with a paper on the oscillations of elastic strings. He worked as assistant to Professor Quincke at Würzburg University and in 1874 accepted a teaching appointment to the St. Thomas Gymnasium in Leipzig. Two years later he was appointed Extraordinary Professor of Theoretical Physics at the University of Marburg, and in 1880 he was invited to fill a similar post at Strasbourg University. Braun was made Professor of Physics at the Technische Hochschule in Karlsruhe in 1883 and was finally invited by the University of Tübingen in 1885; one of his tasks there was to build a new Physics Institute. Ten years later, in 1895, he returned to Strasbourg as Principal of the Physics Institute, where he remained, in spite of an invitation from Leipzig University to succeed G. Wiedemann.

Braun's first investigations were concerned with oscillations of strings and elastic rods, especially with regard to the influence of the amplitude and environment of rods on their oscillations. Other studies were based on thermodynamic principles, such as those on the influence of pressure on the solubility of solids.

His most important works, however, were in the field of electricity. He published papers on deviations from Ohm's law and on the calculations of the electromotive force of reversible galvanic elements from thermal sources. His practical experiments led him to invent what is now called Braun's electrometer, and also a cathode-ray oscillograph, constructed in 1897.

In 1898 he started to occupy himself with wireless telegraphy, by attempting to transmit Morse signals through water by means of high-frequency currents. Subsequently he introduced the closed circuit of oscillation into wireless telegraphy, and was one of the first to send electric waves in definite directions. In 1902 he succeeded in receiving definitely directed messages by means of inclined beam antennae.

Braun's papers on wireless telegraphy were published in 1901 in the form of a brochure under the title Drahtlose Telegraphie durch Wasser und Luff (Wireless telegraphy through water and air).

After the outbreak of the First World War, Braun was summoned to New York to attend as a witness in a lawsuit regarding a patent claim. Owing to his absence from his laboratory and due to illness he was unable to carry out further scientific work. Braun thus spent the last years of his life peacefully in the United States, where he died on April 20, 1918. "

Cathode Ray Tube ~ K.F. Braun
Karl Ferdinand Braun (6 June 1850 – 20 April 1918) was a German inventor, physicist and Nobel laureate in physics. Braun contributed significantly to the development of the radio and television technology : he shared with Guglielmo Marconi the 1909 Nobel Prize in Physics.
https://www.youtube.com/watch?v=J2KGnVX0R-M

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OK, that one UA scooped me on, I'd heard of him, certainpyz though never delved into him, that one was a quite good fatchz I've gotta admit...though he and Marconi, for the umpteen zillionth time, didn't invent radio, two US guys did, one was Dr Mahlon Loomis, a dentist from upstate NY who tested kits as antennae in the Allegheny Mtns in PA just after the Civil War, he got a Congressional patent, there was another guy, I forget his name, the IEEE has been writing about both of them forever, there's a whole big effort to rewrite history to have them acknowledged the true inventorsmof radio...and it was Heinrich Hertz, after James Clerk Maxwell, who actually figured out much of the physics, however, I'd as I'd said, heard of Braun, though never delved into him...also, look up Charles Proteus Steinmetz, you'll find huim interesting for power systems, also German from the sa!e period or thereabouts....

Great bio share on Karl Braun.