Ernst Ruhmer (nonfiction): Difference between revisions

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[[|thumb|Ruhmer listening at one station to his "photo-electric" optical telephone system (1905).]]'''Ernst Walter Ruhmer''' (April 15, 1878—April 8, 1913) was a German physicist. He was best known for investigating practical applications making use of the light-sensitivity properties of selenium, which he employed in developing wireless telephony using line-of-sight optical transmissions, sound-on-film audio recording, and television transmissions over wires.
[[File:Ernst_Ruhmer,_Technical_World_cover_(1905).jpg|thumb|Ruhmer listening at one station to his "photo-electric" optical telephone system (1905).]]'''Ernst Walter Ruhmer''' (April 15, 1878—April 8, 1913) was a German physicist. He was best known for investigating practical applications making use of the light-sensitivity properties of selenium, which he employed in developing wireless telephony using line-of-sight optical transmissions, sound-on-film audio recording, and television transmissions over wires.


== In the News ==
== In the News ==
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* [https://en.wikipedia.org/wiki/Ernst_Ruhmer Ernst Ruhmer] @ Wikipedia
* [https://en.wikipedia.org/wiki/Ernst_Ruhmer Ernst Ruhmer] @ Wikipedia


Attribution:


[[Category:Nonfiction (nonfiction)]]
[[Category:Nonfiction (nonfiction)]]

Revision as of 08:33, 18 February 2018

Ruhmer listening at one station to his "photo-electric" optical telephone system (1905).

Ernst Walter Ruhmer (April 15, 1878—April 8, 1913) was a German physicist. He was best known for investigating practical applications making use of the light-sensitivity properties of selenium, which he employed in developing wireless telephony using line-of-sight optical transmissions, sound-on-film audio recording, and television transmissions over wires.

In the News

Fiction cross-reference

Nonfiction cross-reference

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