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Engineers used radio pulse reflections to detect distant aircraft and ships through clouds and dark. The figure is taken from Imperial War Museums, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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Radar technology was developed during the 1930s for air defence

Engineers used radio pulse reflections to detect distant aircraft and ships through clouds and dark

Scientists in Britain, the United States, Germany, and France independently developed radio detection and ranging systems during the 1930s. Sir Robert Watson-Watt led British efforts to deploy the Chain Home radar towers along the coast to detect incoming aircraft. Radar bounced electromagnetic radio waves off targets to calculate their distance, heading, and altitude.

PIA20023 - Radar View of Titan's Tallest Mountains — NASA / JPL-Caltech / Agenzia Spaziale Italiana · Public domain · source

Where this comes from

Imperial War Museums

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Tags: radar, radio, defense

Radar technology was developed during the 1930s for air defence: the short answers

Where does this come from, and can I check it?: Engineers used radio pulse reflections to detect distant aircraft and ships through clouds and dark. The figure is taken from Imperial War Museums, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a technology fact?: Yes. It sits on the Technology shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.