Assertion: modern telescope | /r/CapableOf | use different mirror design
Facets:
value: to solve this problem
type: PURPOSE
Source sentences:
text: Modern telescopes over 9 meters use a different mirror design to solve this problem, with either a single thin flexible mirror or a cluster of smaller segmented mirrors, whose shape is continuously adjusted by a computer-controlled active optics system using actuators built into the mirror support cell.