# Louis Essen

> Louis Essen OBE FRS was an English physicist whose most notable achievements were in the precise measurement of time and the determination of the speed of light. He was a critic of Albert Einstein's theory of relativity, particularly as it related to time dilation.

*English physicist who invented the caesium atomic clock and determined the speed of light (1908-1997)*

**Canonical URL:** https://fame.am/person/louis-essen

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Country:** United Kingdom
- **Born:** 1908-09-06
- **Died:** 1997-08-24
- **Status:** deceased
- **Gender:** male

## Bio

Imported from discovery source: wikidata-dump

## Fame
- **Popularity score:** 48.3 / 100
- **Momentum:** 15.6 / 100  (trend: BREAKOUT)
- **Historical depth:** 12.4 / 100
- **Now attention:** 0.0 / 100
- **Source confidence:** 60.0 / 100
- **Profile completeness:** 55.0 / 100

## Sources
- [Louis Essen](https://tr.wikipedia.org/wiki/Louis_Essen)
- [لويس إيسن](https://ar.wikipedia.org/wiki/%D9%84%D9%88%D9%8A%D8%B3_%D8%A5%D9%8A%D8%B3%D9%86)
- [لوئیس اسان](https://azb.wikipedia.org/wiki/%D9%84%D9%88%D8%A6%DB%8C%D8%B3_%D8%A7%D8%B3%D8%A7%D9%86)
- [Louis Essen](https://de.wikipedia.org/wiki/Louis_Essen)
- [Louis Essen](https://en.wikipedia.org/wiki/Louis_Essen)
- [Louis Essen](https://es.wikipedia.org/wiki/Louis_Essen)
- [لوئیس اسان](https://fa.wikipedia.org/wiki/%D9%84%D9%88%D8%A6%DB%8C%D8%B3_%D8%A7%D8%B3%D8%A7%D9%86)
- [Louis Essen](https://fr.wikipedia.org/wiki/Louis_Essen)
- [Louis Essen](https://ht.wikipedia.org/wiki/Louis_Essen)
- [Louis Essen](https://id.wikipedia.org/wiki/Louis_Essen)
- [Louis Essen](https://it.wikipedia.org/wiki/Louis_Essen)
- [Louis Essen](https://pl.wikipedia.org/wiki/Louis_Essen)
- [Louis Essen](https://pt.wikipedia.org/wiki/Louis_Essen)
- [Эссен, Льюис](https://ru.wikipedia.org/wiki/%D0%AD%D1%81%D1%81%D0%B5%D0%BD%2C_%D0%9B%D1%8C%D1%8E%D0%B8%D1%81)
- [Wikidata](https://www.wikidata.org/wiki/Q711250)

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