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Topic: Friedrich Schottky


  
  Schottky biography
After obtaining his doctorate, Schottky taught at the University of Berlin from 1875 until 1882 when he was appointed professor of mathematics in Zurich.
Schottky's thesis also discusses conformal mappings of domains bounded by circular and
Schottky's Theorem (1904) is related to Picard's Theorem.
www-history.mcs.st-andrews.ac.uk /Biographies/Schottky.html   (250 words)

  
  Walter H. Schottky   (Site not responding. Last check: 2007-10-23)
Walter H. (Hermann) Schottky (July 23, 1886, Zürich, Switzerland – March 4, 1976, Pretzfeld, West Germany) was a German physicist who invented the screen-grid vacuum tube in 1915 and the tetrode in 1919 while working at Siemens.
He was awarded the Royal Society's Hughes medal in 1936 for his discovery of the Schrot effect (spontaneous current variations in high-vacuum discharge tubes, called by him the "Schrot effect": literally, the "small shot effect") in thermionic emission and his invention of the screen-grid tetrode and a superheterodyne method of receiving wireless signals.
His father was mathematician Friedrich Hermann Schottky (1851–1935).
www.infoforyou.org /input.php?title=Walter_H._Schottky   (122 words)

  
 1918
wird durch Max von Baden eigenmächtig abgesetzt und überträgt dann auf Herrn Friedrich Ebert (SPD) die Geschäfte des Reichskanzlers.
November: Der Rat der Volksbeauftragten übernimmt unter dem Vorsitz von Friedrich Ebert (SPD) und Hugo Haase (USPD) die Regierungsgeschäfte in Deutschland
Walter Schottky beschreibt erstmalig elektronisches Rauschen, insbesondere das thermische Rauschen (auch Johnson-Rauschen) und den Schrot-Effekt, den er vornehmlich für den Strom durch Vakuumröhren analysiert (in: Annalen der Physik 57 (1918),541; 68 (1922), 157)
www.weblexikon.de /1918.html   (2085 words)

  
 Schottky biography
After obtaining his doctorate, Schottky taught at the University of Berlin from 1875 until 1882 when he was appointed professor of mathematics in Zurich.
Schottky's thesis also discusses conformal mappings of domains bounded by circular and
Schottky's Theorem (1904) is related to Picard's Theorem.
www-groups.dcs.st-and.ac.uk /~history/Biographies/Schottky.html   (250 words)

  
 Schottky
Lilly Schottky ist nicht in der Fränkischen Schweiz, sondern in Zürich geboren, wo ihr Vater, der Mathematiker Friedrich Schottky (1851-1935), Professor am Eidgenössischen Polytechnikum war.
Walter Schottky (1886-1976), der in Pretzfeld als Berater der Firma Siemens wirkte, in die Fränkische Schweiz und half ihm einige Zeit als Stenotypistin bei seinen Schreibarbeiten.
In ihren damaligen Dankesworten bezeichnete Lilly Schottky es als ihren Hauptwunsch, „dass Pretzfeld und die Fränkische Schweiz in ihrer landschaftlichen Schönheit erhalten bleiben mögen, nicht vom Rummel überflutet, als eine echte Oase der Ruhe und Erholung".
www.fsv-ev.de /allgemeines/ehrenbuch/schottky/schottky.htm   (744 words)

  
 schottky diode   (Site not responding. Last check: 2007-10-23)
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22003-diode.3.nedmstick.com   (366 words)

  
 Siemens History Site - Scientists and engineers
With the invention of the drum armature in 1872, the chief engineer at Siemens and Halske, Friedrich von Hefner-Alteneck, succeeded in developing a marketable form of the dynamo machine, which is still used in basically the same form in electrical machines today.
The invention of the screen grid tube and the tetrode, the theory of shot noise (Schottky effect) and the invention of the superheterodyne receiver are all Schottky's work, the outcome of his research from 1915 to 1919 as a scientist in the Weak Current Cable Laboratory of Siemens and Halske.
Among Schottky's major achievements was the development of a theory (1938) which explained the rectifying behavior of a metal-semiconductor contact as dependent on a barrier layer at the surface of contact between the two materials, and revolutionized semiconductor technology.
w4.siemens.de /archiv/en/persoenlichkeiten/wissenschaft.html   (1330 words)

  
 schottky diodes   (Site not responding. Last check: 2007-10-23)
Key Words:, zener, diodes, schottky, diodes, schottky, diodes, schottky, diode, rectifier, diodes, pin, diodes
Related Terms: zener diodes, schottky diodes, schottky diodes, schottky diode, rectifier diodes, pin diodes
People who look for schottky diodes sometimes seek:, zener, diodes, schottky, diodes, schottky, diodes, schottky, diode, rectifier, diodes, pin, diodes
22002-diodes.2.nedmstick.com   (293 words)

  
 [No title]
Bessel +------------------------------------------------------------ Bessel Friedrich Wilhelm, (1784-1846) calculated orbit of Halley's orbit as 20 year old.
Friedrichs +------------------------------------------------------------ Friedrichs Friedrichs Kurt (1901-1982) +------------------------------------------------------------
Gauss +------------------------------------------------------------ Gauss Gauss Carl Friedrich (1777-1855) +------------------------------------------------------------
www.math.harvard.edu /~knill/sofia/data/mathematicians.txt   (6427 words)

  
 Cleverpedia, the ultimate encyclopedia   (Site not responding. Last check: 2007-10-23)
Walter Schottky, sometimes also Schottki write, (* 23.
Walter Schottky was the son of the mathematician Friedrich Schottky (1851-1935).
Bannockburn was the name of a village in central Scotland, its name itself from the brook Bannock (burn: bulkhead.
cleverpedia.com /sitemap1194   (1759 words)

  
 Schottky group - Wikipedia, the free encyclopedia
In mathematics, a Schottky group is a special sort of Kleinian group, named after Friedrich Schottky.
A Schottky group is any Kleinian group that can be constructed like this.
Conversely Maskit showed that any finitely generated free Kleininan group such that all non-trivial elements are loxodromic is a Schottky group.
en.wikipedia.org /wiki/Schottky_group   (164 words)

  
 List of Germans   (Site not responding. Last check: 2007-10-23)
Friedrich Engels, (1820 - 1895), philosopher, political economist, and collaborator with Karl Marx
Carl Friedrich von Weizsäcker, (1912 -), philosopher and physicist
Friedrich Ebert, (1871-1925), First President of the Weimar Republic (SPD)
list-of-germans.iqnaut.net   (1134 words)

  
 The Dispatch - Serving the Lexington, NC - News   (Site not responding. Last check: 2007-10-23)
Friedrich III (1831-1888), German Emperor and King of Prussia (1888)
Carl Friedrich von Weizsäcker, (1912-), philosopher and physicist
Friedrich Ebert, (1871-1925), First President of the Weimar Republic (SPD) 1919-1925
www.the-dispatch.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=List_of_Germans   (1698 words)

  
 Books by Klaus Hammacher, compare prices
You may browse this category by title or by publication date.
by Walter Jaeschke, Klaus Hammacher, Friedrich Heinrich Jacobi
Friedrich Heinrich Jacobi (1743-1819) : Dusseldorf Als Zentrum Von Wirtschaftsreform, Literatur Und Philosophie Im 18.
www.allbookstores.com /author/Klaus_Hammacher.html   (245 words)

  
 EduNETConnect.com - Learning Categories -
Hypatia was the first woman to make a substantial contribution to the development of mathematics.
Most of Schottky's work concerns elliptic, abelian and theta functions.
His doctoral thesis is an important contribution to conformal mappings of multiply connected plane domains.
www.edunetconnect.com /categories/topic.php?topic=56&category=8   (150 words)

  
 The Mathematics Genealogy Project - Friedrich Schottky
Click here to see the students listed in chronological order.
According to our current on-line database, Friedrich Schottky has 11 students and 1499 descendants.
If you have additional information or corrections regarding this mathematician, please use the
genealogy.math.ndsu.nodak.edu /id.php?id=9722   (130 words)

  
 David's In-Progress List. Created: 26 Nov 2006   (Site not responding. Last check: 2007-10-23)
Samuel, Horace B. The Genealogy of Morals by Nietzsche, Friedrich - Copyright cleared 6 Apr 2003 by Friedrich Nietzsche, trans.
The Genealogy of Morals by Nietzsche, Friedrich - Copyright cleared 31 Mar 2003 by Friedrich Nietzsche, trans.
Dr. Kohler Kohler, Friedrich Reinhold Kreutzwald, Anton Schiefner, trans.
www.zuhause.org /dp/GutIP/GutIP_S.html   (13472 words)

  
 TUC / Physik / HLPH   (Site not responding. Last check: 2007-10-23)
Kobitski, M. Friedrich, H. Wagner T.U. Kampen, D.R.T. Zahn;
Friedrich, A. Schulze, G. Prösch, C. Walter, Detlef Weickert, N.M. Binh, D.R.T. Zahn;
Friedrich, S. Morley, S. Laufer, T. Werninghaus, D.R.T. Zahn
www.tu-chemnitz.de /physik/HLPH/hlph09.html   (5541 words)

  
 24 Jul History: This Date   (Site not responding. Last check: 2007-10-23)
He worked in algebraic geometry as well as elasticity, heat and electricity.
1851 Friedrich Hermann Schottky, German mathematician who died on 12 August 1935.
Author of Abriss einer Theorie der Abel'schen Functionen von drei Variablen (1880).
www.jcanu.hpg.ig.com.br /history/h4jul/h4jul24.html   (9369 words)

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