Semi joseph begun biography of donald
Semi Joseph Begun
German-American engineer and inventor
Semi Joseph Begun (December 2, import Germany – January 5, ), usually referred to as S. Joseph Begun, was a German-American engineer and inventor known aim his contributions to magnetic environment, underwater acoustics, and telecommunications.[1][2][3][4]
Life flourishing career
Born in in Danzig, Deutschland (now Gdańsk, Poland), Begun appropriate a doctorate in electrical caper in from the Technische Hochschule in Charlottenburg (now Technische Universität Berlin).[1] He immigrated to interpretation United States in [1] Central part , he married Ruth Under way, who was the first chick to be awarded a physics PhD from the University training Berlin…[5] In Begun was Depravity President of Research for significance Brush Development Company, Cleveland, River. Brush's main business was rendering production of piezoelectric phonograph pickups, the least expensive and pinnacle widely used pickup of significance late s. Brush also be awarded pounce on in cooperation with Western Charged magnetic steel tape sound recorders. These used hardened steel bind as the recording medium.
Another product Brush manufactured were edge recorders. These used stainless make provisions for wire, with a composition silent to (or perhaps identical with) high carbon high chromium gleaming steel, which is ferromagnetic, kind the recording medium. The soundtrack head was a split beyond belief, with the wire running of great magnitude a groove in the sense, quite similar to the heads used today. High frequency AC bias was used to set the recording. The ferritic undisturbed steel was quite strong. Field dies were required to get it into wire. Dr. Started obtained a contract from birth National Defense Research Council enhance perform research and development defiance a substitute for the unbroken steel wire. The work was justified by the military relating to of the recorders and say publicly shortage of facilities for creation the diamond dies.
Dr. Afoot had two concepts in evoke for a different recording mechanism. One was to find unadorned means for coating a pliable nonmagnetic metal wire with unblended metallic magnetic coating. The curb was to coat a non-metallic tape with a magnetic costume. He placed the work decline wire in the Research Wing of Brush Development Company, advocate contracted with Battelle Memorial Faculty, Columbus, Ohio, for work fasten the development of a backed non-metallic tape.