# Second sound

> quantum mechanical phenomenon in which heat transfer occurs by wave-like motion

**Wikidata**: [Q233699](https://www.wikidata.org/wiki/Q233699)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Second_sound)  
**Source**: https://4ort.xyz/entity/second-sound


## References

1. [Source](https://news.mit.edu/2019/second-sound-observed-graphite-0314)
2. Freebase Data Dumps. 2013
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)