HOME

TheInfoList



OR:

Berend Wilhelm Feddersen (26 March 1832 in
Schleswig The Duchy of Schleswig ( da, Hertugdømmet Slesvig; german: Herzogtum Schleswig; nds, Hartogdom Sleswig; frr, Härtochduum Slaswik) was a duchy in Southern Jutland () covering the area between about 60 km (35 miles) north and 70 km ...
– 1 July 1918 in
Leipzig Leipzig ( , ; Upper Saxon: ) is the most populous city in the German state of Saxony. Leipzig's population of 605,407 inhabitants (1.1 million in the larger urban zone) as of 2021 places the city as Germany's eighth most populous, as wel ...
) was a German physicist.


Biography

Feddersen studied
chemistry Chemistry is the science, scientific study of the properties and behavior of matter. It is a natural science that covers the Chemical element, elements that make up matter to the chemical compound, compounds made of atoms, molecules and ions ...
and
physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which r ...
at the
University of Göttingen The University of Göttingen, officially the Georg August University of Göttingen, (german: Georg-August-Universität Göttingen, known informally as Georgia Augusta) is a public research university in the city of Göttingen, Germany. Founded ...
, where he became member of
Burschenschaft Hannovera Burschenschaft Hannovera is the oldest Burschenschaft, a traditional liberal German Student fraternity or student corporation (Studentenverbindung), incorporated in Göttingen in the Revolution year 1848 (May) at the Georg August University of ...
(fraternity) :de:Burschenschaft Hannovera Göttingen and lived from 1858 as a private scholar in Leipzig. In 1859 he succeeded in experiments with the Leyden jar to prove that every single
electric spark An electric spark is an abrupt electrical discharge that occurs when a sufficiently high electric field creates an ionized, electrically conductive channel through a normally-insulating medium, often air or other gases or gas mixtures. Michael F ...
discharge composed of (damped) oscillations. He realized that the arise from a coil, capacitor and resistor existing electrical circuit oscillations. Thus he became the co-founder of
wireless technology Wireless communication (or just wireless, when the context allows) is the transfer of information between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most ...
. Feddersen was co-editor of the Biographical Dictionary and literary and on the history of exact sciences. He was a member of the
Saxon Society of Sciences The Saxons ( la, Saxones, german: Sachsen, ang, Seaxan, osx, Sahson, nds, Sassen, nl, Saksen) were a group of Germanic * * * * peoples whose name was given in the early Middle Ages to a large country (Old Saxony, la, Saxonia) near the Nor ...
.


Works

* Contributions to the knowledge of the electric spark. Inaugural Dissertation, Kiel 1854th Kiel: CF Mohr, 1857. * Discharge of the Leyden jar, intermittent, continuous, oscillatory discharge, while the law. Essays ... 1857–1866. / Edited by T. Des Coudres. With a portrait of the author in photogravure and 3 lithographic plates. Leipzig: W. Engelmann, 1908. (Ostwald's Classics of the exact sciences. No 166) * The discovery of electrical waves. Leipzig 1909th


See also

*
Heinrich Hertz Heinrich Rudolf Hertz ( ; ; 22 February 1857 – 1 January 1894) was a German physicist who first conclusively proved the existence of the electromagnetic waves predicted by James Clerk Maxwell's Maxwell's equations, equations of electrom ...
*
Invention of radio 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 developments related to their transmission and ...
* Berend Wilhelm Feddersen, Wikipedia in German :de:Berend Wilhelm Feddersen


Further reading

* Henke, Martin: Fast-acting spark in a fast mirror - Berend Wilhelm Feddersen (1832–1918) and the analysis of the electrical oscillations. Hamburg: Print on Demand, 2000.


References

*''Biographical encyclopedia of German-speaking scientists'' / ed. Dietrich von Engelhardt. Munich, 2003. Saur . *''Herder Lexicon scientists''. Freiburg: Herder, 1979. . {{DEFAULTSORT:Feddersen, Berend Wilhelm 1832 births 1918 deaths 19th-century German physicists