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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
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Passemant, Claude Siméon – Construction d'un telescope par reflexion, 1741 – BEIC 4631451 - PICRYL - Public Domain Media Search Engine Public Domain Search
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