A Refracting Telescopes Refracting telescopes, or refractors, use a glass lens to bend, or refract, starlight and bring it to a focus.
(A Refracting Telescopes Refracting telescopes, or refractors; use; a glass lens; to bend, or refract, starlight and bring it to a focus) Context(A Refracting Telescopes Refracting telescopes , or refractors use,List([0, 65))):(A Refracting Telescopes Refracting telescopes, or refractors; use a glass lens to bring; it; to a focus)
A Refracting Telescopes Refracting telescopes , or refractors use,List([0, 65))
A Refracting Telescopes Refracting telescopes, or refractors A Refracting Telescopes Refracting telescopes, or refractors
use use a glass lens to bring
a glass lens to bend, or refract, starlight and bring it to a focus
it to a focus