# Harold Ewen

> Harold Irving "Doc" Ewen was an American physicist, radio astronomer, and business executive. He served in the United States Navy in World War II as a second lieutenant. As a graduate student under Edward M. Purcell, he was the first to detect the galactic 21-cm hydrogen line.

*American astrophysicist and physicist (1922-2015)*

**Canonical URL:** https://fame.am/person/harold-ewen

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Country:** United States
- **Born:** 1922-03-05
- **Died:** 2015-10-08
- **Status:** deceased
- **Gender:** male

## Bio

Harold Irving "Doc" Ewen was an American physicist, radio astronomer, and business executive. He served in the United States Navy in World War II as a second lieutenant. As a graduate student under Edward M. Purcell, he was the first to detect the galactic 21-cm hydrogen line.

## Fame
- **Fame score:** 37.0
- **Momentum:** 16.2

## Sources
- [Harold Irving Ewen](https://en.wikipedia.org/wiki/Harold_Irving_Ewen)
- [Harold Irving Ewen](https://de.wikipedia.org/wiki/Harold_Irving_Ewen)
- [Harold Ewen](https://fr.wikipedia.org/wiki/Harold_Ewen)
- [Wikidata](https://www.wikidata.org/wiki/Q387018)

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