# Ernst Hagen

> German physicist (1851-1923)

**Wikidata**: [Q15446442](https://www.wikidata.org/wiki/Q15446442)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ernst_Bessel_Hagen)  
**Source**: https://4ort.xyz/entity/ernst-hagen


## References

1. Integrated Authority File
2. [Source](https://www.deutsche-biographie.de/sfz25272.html)
3. Physicists: Biographical Dictionary
4. nobelprize.org
5. FactGrid