Refracting 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

Notion

Domain

Science and technology

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What Wikipedia says

A refracting telescope (also called a refractor or dioptric telescope) is a type of optical telescope that uses a lens as its objective to form an image. The refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses.

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

Image: Bori64, CC BY-SA 3.0, via Wikimedia Commons.