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Telescopes
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Telescope's
primary goal is to collect light
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the
bigger it is, the more light it collects
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Two
basic types:
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refracting
-- uses lenses
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reflecting
-- uses mirrors
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don't
need to know all subtypes
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Can't
see out of atmosphere at all wavelengths of electromagnetic radiation
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Need
to be above atmosphere for infrared and UV, X-ray, Gamma-ray
refracting
telescope design
Yerkes
observatory
reflecting
telescope design
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