Well, any of us who has ever looked through a telescope could say ... the refractor by Galileo and the reflector by Newton. Those two scientific geniuses, as Sir Isaac himself acknowledged ...

The standard telescope of Newton's time ... argue that the greatest Giant of all in the world of science was Isaac Newton himself.

Isaac Newton changed ... reconsider the design of the telescope, which up until this point was a large, cumbersome instrument. By using mirrors instead of lenses, Newton was able to create a ...