![Drawing of the reflecting telescope used by Isaac Newton (1642 - 1727), British scientist Stock Photo - Alamy Drawing of the reflecting telescope used by Isaac Newton (1642 - 1727), British scientist Stock Photo - Alamy](https://c8.alamy.com/comp/RJN04C/drawing-of-the-reflecting-telescope-used-by-isaac-newton-1642-1727-british-scientist-RJN04C.jpg)
Drawing of the reflecting telescope used by Isaac Newton (1642 - 1727), British scientist Stock Photo - Alamy
![An engraving depicting Isaac Newton's reflecting telescope. Isaac Newton Sr. (1643-1727) an English mathematician, astronomer, theologian, author, and physicist. Dated 20th century Stock Photo - Alamy An engraving depicting Isaac Newton's reflecting telescope. Isaac Newton Sr. (1643-1727) an English mathematician, astronomer, theologian, author, and physicist. Dated 20th century Stock Photo - Alamy](https://c8.alamy.com/comp/RJ93B4/an-engraving-depicting-isaac-newtons-reflecting-telescope-isaac-newton-sr-1643-1727-an-english-mathematician-astronomer-theologian-author-and-physicist-dated-20th-century-RJ93B4.jpg)
An engraving depicting Isaac Newton's reflecting telescope. Isaac Newton Sr. (1643-1727) an English mathematician, astronomer, theologian, author, and physicist. Dated 20th century Stock Photo - Alamy
![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 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](https://c8.alamy.com/comp/2BE0YWT/sir-isaac-newtons-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-displayed-this-telescope-to-king-charles-ii-based-on-a-design-of-1668-it-had-a-focal-length-of-15cm-and-could-magnify-30-40-times-inadequate-mirrors-meant-that-the-newtonian-reflector-was-not-as-refined-as-contemporary-refracting-telescope-until-1722-when-james-haley-ground-a-quality-parabolic-mirror-this-drawing-was-published-in-the-philosophical-transactions-of-the-royal-2BE0YWT.jpg)
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
![Newton's Telescope C1670./Nisaac Newton's reflecting telescope C1670: Line Engraving 19th Century Art Print (45.72 X 60.96 CM) : Amazon.de: Home & Kitchen Newton's Telescope C1670./Nisaac Newton's reflecting telescope C1670: Line Engraving 19th Century Art Print (45.72 X 60.96 CM) : Amazon.de: Home & Kitchen](https://m.media-amazon.com/images/I/71MOZXz8h0L._AC_SX466_.jpg)