FRESNEL

Fresnel, Augustin Jean Fresnel

(noun) French physicist who invented polarized light and invented the Fresnel lens (1788-1827)

Source: WordNet® 3.1


Etymology

Noun

fresnel (plural fresnels)

(physics) A unit of frequency equal to 1012 hertz, or one terahertz.

A Fresnel lens or a light feature using such a lens

Anagrams

• Fleners, flenser

Source: Wiktionary



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Word of the Day

3 February 2025

CRAZY

(adjective) possessed by inordinate excitement; “the crowd went crazy”; “was crazy to try his new bicycle”


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Coffee Trivia

Decaffeinated coffee is not caffeine-free. Studies from the National Institute of Health (US) have shown that virtually all decaf coffee types contain caffeine. A 236-ml (8-oz) cup of decaf coffee contains up to 7 mg of caffeine, whereas a regular cup provided 70-140 mg.

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