A primary mirror (or primary) is the principal light-gathering surface (the objective) of a reflecting telescope.
Read more about Primary Mirror: Description, Superlative Primary Mirrors
Famous quotes containing the words primary and/or mirror:
“The primary function of a theater is not to please itself, or even to please its audience. It is to serve talent.”
—Robert Brustein (b. 1927)
“Just as a mirror may be used to reflect images, so ancient events may be used to understand the present.”
—Chinese proverb.
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