Question #7cfba
1 Answer
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.