Ernst Walter Ruhmer
German physicist (1878-1913) · Germany · Scientists · Died at 34
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Something wrong?Ernst Walter Ruhmer 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...
Text from Wikipedia, CC BY-SA 4.0
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![Ruhmer demonstrating his experimental television system, which was capable of transmitting images of simple shapes over telephone lines, using a 25-element selenium cell receiver (1909)[16]](https://thumb.wikimedia.org/wikipedia/commons/thumb/9/91/Ernst_Ruhmer_demonstrating_simple_television_system_%281909%29.jpg/500px-Ernst_Ruhmer_demonstrating_simple_television_system_%281909%29.jpg?utm_source=en.wikipedia.org&utm_campaign=parser&utm_content=thumbnail)
About this person
Ernst Walter Ruhmer 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.
Text from Wikipedia, CC BY-SA 4.0
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