Assertion: newtonian telescope's design | /r/CapableOf | use mirror
Facets:
value: to allow a compact telescope design
type: PURPOSE
value: to produce an image
type: PURPOSE
Source sentences:
text: This design is catadioptric using mirrors to produce an image like the Newtonian reflector, but it is an entirely different type of design than the Newtonian.
text: This design uses three mirrors to allow a compact telescope design with a long focal length.