Crookes tube

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

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What Wikipedia says

A Crookes tube (also Crookes–Hittorf tube) is an early experimental discharge tube with partial vacuum invented by English physicist William Crookes and others around 1869–1875, in which cathode rays, streams of electrons, were discovered.

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

Image: D-Kuru, CC BY-SA 3.0 at, via Wikimedia Commons.