Foucault telescope, 19th century

Foucault telescope, 19th century

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Credit: SCIENCE PHOTO LIBRARY

Caption: Foucault telescope. 19th-century illustration of the Foucault telescope, invented in the late 1850s by French physicist Leon Foucault (1819-1868) in collaboration with Swiss-born instrument-maker Marc Secretan (1804-1867, name at lower centre). The design was a silvered-glass reflecting telescope. This illustration is from 'Physique Populaire' (Emile Desbeaux, 1891).

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Keywords: 1891, 19th century, artwork, astronomical, astronomy, astrophysical, astrophysics, black-and-white, desbeaux, design, device, emile desbeaux, equipment, european, foucault telescope, french, historical, history, illustration, leon foucault, marc secretan, monochrome, no-one, nobody, physical, physics, physique populaire, popular science, reflecting, reflector, secretan, silvered glass, technological, technology, telescope

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