# Micrometer

Micrometer Search Educational Film Journals at Media History Project for references to this film SummaryExplains the care, use and maintenance of micrometers. Describes the white settlers' hard-fought and costly victory over the Plains Indians in the push westward, picturing familiar battles such as the Little Big Horn, the Sand Creek massacre and the Fetterman massacre. Points out the great amount of agricultural, military, and political knowledge that Americans gained from their contact with the Indian.

- Kind: Educational
- Year: 1941
- Runtime: 14 min
- By: United States. Office of Education, Loucks and Norling Studios, National Audiovisual Center
- Genres: Education, Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/micrometer)
- Licence or status: none stated by the archive
- Who can watch: Adult profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/micrometer?play=1)