| birth_place Ruppertshofen Württemberg | death_date | death_place | residence | nationality | field Electrical engineering | work_institution | alma_mater | doctoral_advisor |awards IEEE Medal of Honor }} Jonathan Adolf Wilhelm Zenneck (April 15, 1871 - April 8, 1959) was a physicist and electrical engineer Zenneck was born in Ruppertshofen Württemberg Zenneck contributed to researches in radio circuit performance and to the science and educational contributions to the literature of the wireless Zenneck improved the Braun vacuum tube. Zenneck added deflector coils which allowed the direct reception of signals.

Early years

In 1885, Zenneck entered the Evangelical-Theological Seminary in Maulbronn In 1887, in a Blaubeuren seminary, Zenneck learned Latin Greek language French language and Hebrew language In 1889, Zenneck enrolled in the Tübingen University At the Tuebingen Seminary Zenneck studied mathematics and natural sciences In 1894, Zenneck took the State examination in mathematics and natural sciences and the examination for his doctors degree. In 1894, Zenneck conducted zoological research (Natural History Museum, London . Between 1894-1895, Zenneck served in the military.

Middle years

Between 1895 to 1905, Zenneck was assistant to Braun and lecturer at the Physikalischen Institute in Strasbourg Alsace Zenneck worked as assistant of Ferdinand Braun Nikola Tesla lectures introduced the wireless sciences to Zenneck. In 1899, Zenneck entered wireless telegraphy In 1900, Jonathan Zenneck experiments in Cuxhaven Germany between the various radio systems and, in 1902, conducts tests of directional antenna . In 1905, Zenneck was appointed assistant professor at the Danzig Technical High School In 1906, Zenneck was appointed professor of experimental physics in the Braunschweig Technische Hochschule. Also in 1906, Zenneck wrote "Electromagnetic Oscillations and Wireless Telegraphy (standard textbook on the subject). In 1909, Zenneck joined Badische Anilin und Sodafabrik to experiment on nitrogen Image:Jonathan Zenneck, Denkmal, Cuxhaven.jpg ]

Later years

Around World War I Zenneck went to the front as a Captain (land) in the Marines In 1914, Zenneck was sent to the United States as technical advisor In 1919, Zenneck resumed the professorship of experimental physics at the Technische Hochschule in Munich Zenneck was awarded the 1928 IRE Medal of Honor After World War II he directed and rebuilt the Deutsches Museum in Munich For his achievements in basic research on radio technology and for fostering academic and technical offspring he received the Siemens-Ring in 1956.

References

* http://www.cathodique.net/zenneck.html Jonathan Zenneck] (1871-1959) * Physik Departments an der Technischen Universität München, "[http://www.physik.tu-muenchen.de/intern/broschueren/department/ Booklet]. Chapter 11. History (Portable Document Format * IEEE History Center - "[http://www.ieee.org/organizations/history_center/legacies/zenneck.html Legacies: Jonathan A. Zenneck] Category:1871 births Category:1959 deaths Category:German engineers Category:IEEE Medal of Honor recipients Category:Werner-von-Siemens-Ring laureates de:Jonathan Zenneck fr:Jonathan Zenneck nl:Jonathan Zenneck