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The first Gregorian reflecting telescope, 1724. The Scottish mathematician, James Gregory, first suggested this optical layout using two concave mirrors in his book ‘Optica Promota’ in 1663.
Location
Science Museum/London/Great Britain
Unique Identifier
ART394929
Type
Image
Purpose
Public
Size
3504px × 2512px
Photo Credit
SSPL/Science Museum / Art Resource, NY
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Tags
18th century CE
English
Optics
Telescope