# four-momentum

> generalization of the classical three-dimensional momentum to four-dimensional spacetime

**Wikidata**: [Q1068463](https://www.wikidata.org/wiki/Q1068463)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Four-momentum)  
**Source**: https://4ort.xyz/entity/four-momentum


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)