St. Elmo's fire

Rarity: Rare

A topic known well beyond its field, found in many languages.

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

St. Elmo's fire (also called corposant, Hermes fire, furole, witchfire or witch's fire) is a weather phenomenon in which luminous plasma is created by a corona discharge from a rod-like object such as a mast, spire, chimney, or animal horn in an atmospheric electric field.

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

Image: Elmo's_fire.jpg: Unknown derivative work: Saibo (Δ), Public domain, via Wikimedia Commons.