Engraving of a telescope used by Jean Foucault

Engraving of a telescope used by Jean Foucault

R102/0097

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Caption

Foucault's telescope. Engraving of the largest telescope used by French astronomer and physicist, Jean Bernard Leon Foucault (1819-68). He invented a way of making lenses for reflecting telescopes by chemically depositing silver onto glass in 1858. This telescope had a 80-centimetre coated glass disk and was used from the late 1850s. It was used in Paris, Lyons and (from 1864) Marseilles.

Release details

Model release not required. Property release not required.

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