Philipp lenard
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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.

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Philipp Lenard

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Philipp lenard

Philipp Lenard

By: Andrew Kapperman


Philipp lenard

Who?

  • Born at Pozsony, Austria-Hungary on June 7th, 1862

  • Discovered Cathode Rays

  • Married Katharina Schlehner

  • Died May 20, 1947


Cathode rays

Cathode Rays

  • Stream of electrons leaving the negative electrode.

  • Cathode Ray Tubes:

  • Invented by Karl Ferdinand Braun


Cathode ray tubes

Cathode Ray Tubes

  • Used in:

    • Computer monitors

    • Automated teller machines

    • Video game machines

    • Video cameras

    • Oscilloscopes

    • Radar displays


Before he discovered

Before He Discovered…

  • 1886 – Got Ph.D.

  • 1892 – Privatdozent and assistant to Professor Hertz

  • 1894 – Appointed Professor Extraordinary at University of Breslau

  • 1894 – Published the Principle of Mechanics


Before he discovered1

Before He Discovered…

  • 1898 – Appointed Professor Ordinarius at the University of Kiel

  • 1896 – Became Professor of Physics at Aix-la-Chapelle


Quick fact

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

Pictures


Cathode ray tube

Cathode Ray Tube


Comic

Comic


Pictures1

Pictures


Bibliography

Bibliography

  • http://nobelprize.org/nobel_prizes/physics/laureates/1905/lenard-bio.html


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