# micrometer

> length measurement device incorporating a calibrated screw

**Wikidata**: [Q12458](https://www.wikidata.org/wiki/Q12458)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Micrometer_(device))  
**Source**: https://4ort.xyz/entity/micrometer


## References

1. A Short History of Astronomy
2. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
3. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=20749)
4. Art & Architecture Thesaurus
5. Freebase Data Dumps. 2013
6. Quora
7. National Library of Israel