Philipp Lenard
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Philipp Lenard By: Andrew Kapperman
description
Philipp Lenard. By: Andrew Kapperman. Who?. Born at Pozsony, Austria-Hungary on June 7 th , 1862 Discovered Cathode Rays Married Katharina Schlehner Died May 20, 1947. Cathode Rays. Stream of electrons leaving the negative electrode. Cathode Ray Tubes: Invented by Karl Ferdinand Braun. - PowerPoint PPT Presentation
Transcript of Philipp Lenard
Philipp Lenard
By: Andrew Kapperman
Who?
Born at Pozsony, Austria-Hungary on June 7th, 1862
Discovered Cathode RaysMarried Katharina SchlehnerDied May 20, 1947
Cathode Rays
Stream of electrons leaving the negative electrode.
Cathode Ray Tubes:Invented by Karl Ferdinand Braun
Cathode Ray Tubes
Used in:Computer monitorsAutomated teller machinesVideo game machinesVideo camerasOscilloscopesRadar displays
Before He Discovered…
1886 – Got Ph.D.1892 – Privatdozent and assistant to
Professor Hertz1894 – Appointed Professor
Extraordinary at University of Breslau1894 – Published the Principle of
Mechanics
Before He Discovered…
1898 – Appointed Professor Ordinarius at the University of Kiel
1896 – Became Professor of Physics at Aix-la-Chapelle
Quick Fact
In 1902 Lenard showed that an electron must have a certain minimum energy before it could product ionization when it passed through a gas
Pictures
Cathode Ray Tube
Comic
Pictures
Bibliography
http://nobelprize.org/nobel_prizes/physics/laureates/1905/lenard-bio.html
