Jacob's staff

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

In collections

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What Wikipedia says

Jacob's staff is a measuring tool with several variations. It is also known as cross-staff, a ballastella, a fore-staff, a ballestilla, or a balestilha. In its most basic form, a Jacob's staff is a stick or pole with length markings, often with a smaller segment attached perpendicularly.

Excerpt from the Wikipedia article “Jacob's staff”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Rudolf H. Boettcher, CC BY-SA 4.0, via Wikimedia Commons.