Theremin

Rarity: Ultra rare

A topic known all over the world: only a few thousand cards.

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

Invention

Domain

Arts and letters

Knowledge cost

6

In collections

Nobody has pulled it yet.

What Wikipedia says

The theremin (; originally known as the ætherphone, etherphone, thereminophone or termenvox/thereminvox) is an electronic musical instrument controlled without physical contact by the performer (who is known as a thereminist). It is named after its inventor, Leon Theremin, who patented the device in 1928.

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

Image: Hutschi, CC BY-SA 3.0, via Wikimedia Commons.