Question #7cfba

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SCooke
Jan 6, 2018

An optical device (usually) used to collect and focus light - usually to "enlarge" or enhance the image of distant objects.

Explanation:

We also call devices using similar collections of electromagnetic energy outside of the visible region telescopes, e.g. radio telescopes or infrared telescopes.

It may also be used to describe a system in which parts "nest" inside of each other, derived from early mechanical focusing mechanisms for telescopes.

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