Sir Isaac Newton's reflecting telescope, known also as the Newtonian telescope. It worked by concentrating light by reflection from a parabolic mirror, instead of by refraction through a lens. Newton (1642-1727) first
Shvabe Revived Newton's Telescopes
Isaac Newton's Design For A Reflecting Telescope Photograph by
Isaac Newton's Reflecting Telescope Photograph by Power And Syred, Libreria Bardon/science Photo Library
115点のIsaac Newton Telescopeのストックフォト - Getty Images
Newton's first reflecting telescope, 1668. at Science and Society Picture Library
Isaac Newton's Reflecting Telescope Photograph by Power And Syred, Nasa/science Photo Library
Physics LOVER - The reflecting telescope invented by sir (Isaac Newton) in 1671. By using a curved mirror to reflect and focus the light, the length of the telescope was dramatically reduced.
19th Century Model Of Newtons Reflecting Telescope Photograph by Royal Greenwich Observatory/science Photo Library