The Royal Society on Twitter: "Here's one from the Royal Society collections - a reflecting telescope designed and made by Isaac Newton. He built his first version in 1668; this is his
![NEWTON'S TELESCOPE, c.1670 Isaac Newton's reflecting telescope, c.1670: line engraving, 19th century. by NEWTON'S TELESCOPE, c.1670 Isaac Newton's reflecting telescope, c.1670: line engraving, 19th century. by](https://images-cdn.bridgemanimages.com/api/1.0/image/600wm.XXX.61045330.7055475/3350837.jpg)
NEWTON'S TELESCOPE, c.1670 Isaac Newton's reflecting telescope, c.1670: line engraving, 19th century. by
![Isaac Newton's Reflecting Telescope Photograph by Power And Syred, Libreria Bardon/science Photo Library - Fine Art America Isaac Newton's Reflecting Telescope Photograph by Power And Syred, Libreria Bardon/science Photo Library - Fine Art America](https://images.fineartamerica.com/images-medium-large-5/isaac-newtons-reflecting-telescope-power-and-syred-libreria-bardonscience-photo-library.jpg)