Jacob's staff
Sign in to saveAlso known as cross-staff, ballastella, fore-staff, balestilha
calibrated wooden rod with sliding crosspiece used for measuring the altitude of celestial bodies or the height of distant objects
In the Vinony graph
Within Vinony's link graph, Jacob's staff is referenced by 122 other articles, and connects out to Sun, astronomy and ecology.
It sits within the topics 14th-century inventions, Angle measuring instruments and Celestial navigation.
Its subject is documented across 25 Wikipedia language editions.
Wikidata facts
- Subclass of
- astronomical instrument
- Named after
- Jacob
- Image
- Jakobsstab 1rhb.jpg
Show 5 more facts
- used by
- navigation
- discoverer or inventor
- Jacob ben Machir ibn Tibbon
- time of earliest written record
- 1342-00-00
- Commons category
- Jacob's staff
- time of discovery or invention
- 1350-00-00
Sources (2)
via Wikidata · CC0