'In 1930 Bernhard Schmidt invented the first catadioptric telescope that combined lenses & these'
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ABOUT SCHMIDT: In 1930 Bernhard Schmidt invented the first catadioptric telescope that combined lenses & these
In 1930 Bernhard Schmidt invented the first catadioptric telescope that combined lenses & these
In 1930 Bernhard Schmidt invented the first catadioptric telescope that combined lenses & these
ABOUT SCHMIDT
mirrors
ABOUT SCHMIDT