# schlieren photography

> process to photograph fluid flow

**Wikidata**: [Q521426](https://www.wikidata.org/wiki/Q521426)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Schlieren_photography)  
**Source**: https://4ort.xyz/entity/schlieren-photography


## References

1. [Library of Congress Subject Headings](http://id.loc.gov/authorities/subjects/sh85118190.html)
2. National Library of Israel Names and Subjects Authority File
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)