Photometer

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

Nobody has pulled it yet.

What Wikipedia says

A photometer is an instrument for measuring photometric quantities such as luminous flux, illuminance, or luminance.

Excerpt from the Wikipedia article “Photometer”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Thomas Wydra, CC BY-SA 3.0 de, via Wikimedia Commons.