# Earnshaw's theorem

> Mathematical demonstration applied in electro-magnetism

**Wikidata**: [Q1064471](https://www.wikidata.org/wiki/Q1064471)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Earnshaw's_theorem)  
**Source**: https://4ort.xyz/entity/earnshaw-s-theorem


## References

1. Freebase Data Dumps. 2013