# Ernst Walter Ruhmer

> 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.

*German physicist (1878-1913)*

**Canonical URL:** https://fame.am/person/ernst-walter-ruhmer

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Country:** Germany
- **Born:** 1878-12-15
- **Died:** 1913-04-08
- **Status:** deceased
- **Gender:** male

## Bio

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.

## Fame
- **Popularity score:** 36.0 / 100
- **Momentum:** 2.2 / 100  (trend: STABLE)
- **Historical depth:** 3.9 / 100
- **Attention shift:** 8.8 / 100
- **Source confidence:** 25.0 / 100
- **Profile completeness:** 70.0 / 100

## Sources
- [Ernst Ruhmer](https://en.wikipedia.org/wiki/Ernst_Ruhmer)
- [Ernst Walter Ruhmer](https://de.wikipedia.org/wiki/Ernst_Walter_Ruhmer)
- [Ernst Ruhmer](https://es.wikipedia.org/wiki/Ernst_Ruhmer)
- [ارنست والتر رومر](https://arz.wikipedia.org/wiki/%D8%A7%D8%B1%D9%86%D8%B3%D8%AA_%D9%88%D8%A7%D9%84%D8%AA%D8%B1_%D8%B1%D9%88%D9%85%D8%B1)
- [Wikidata](https://www.wikidata.org/wiki/Q1360512)

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