How to Align Your Newtonian Reflector Telescope | Sky & Telescope - Sky & Telescope
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
Watch an Astronaut Test Newton's Second Law of Motion in Space | Space
The Royal Society on Twitter: "Reflecting telescope, designed and made by Isaac Newton. He built his first reflecting telescope in 1668; this is his second model. The telescope consists of two tubes,
Newtons own drawing of his reflecting telescope (Photos Framed Prints Puzzles...) #6453369