# Entropy

> only quantity in the physical sciences that requires a particular direction for time

**Wikidata**: [Q4117933](https://www.wikidata.org/wiki/Q4117933)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Entropy_as_an_arrow_of_time)  
**Source**: https://4ort.xyz/entity/entropy-q4117933


## References

1. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)