The telescope helped us by showing us what we can't see with our eyes
Amateur Telescope Making was created in 1926.
Amateur Telescope Making has 1216 pages.
A telescope with achromatic lenses.
I think this is what you mean: He didn't invent the telescope, but he didn't mind that people thought he did. He did make some changes to it, and he used it to great effect.
trolololololololo
yes
the mirror was not right
To make a tv telescope
when there are problems with the hubble space telescope, astronomers send astronauts to go fix the problem.
The reflecting telescope
Glass + Star = Telescope
launch delays, budget problems and a incorrect mirror