Assertion: telescope's size | /r/HasProperty | proportional
Facets:
value: directly
type: MANNER
value: to that of the aperture
type: OTHER
value: to the scope's ability
type: OTHER
Source sentences:
text: The aperture size is the true key to the "power" of a telescope—its size is directly proportional to the scope's ability to gather light.
text: However, the size of the apparatus is directly proportional to that of the aperture.
text: The size of an image produced by a lens is proportional to the focal length of the lens.