Telescope

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

Work

Domain

Arts and letters

Knowledge cost

6

In collections

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What Wikipedia says

A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. Originally, it was an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects – an optical telescope.

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

Image: Rama, CC BY-SA 2.0 fr, via Wikimedia Commons.