Assertion: optical telescope | /r/CapableOf | collect visible light
Facets:
Source sentences:
text: Just as optical telescopes collect visible light, bring it to a focus, amplify it and make it available for analysis by various instruments, so do radio telescopes collect weak radio light waves, bring it to a focus, amplify it and make it available for analysis.
text: Optical telescopes collect visible light.
text: Optical telescopes collect visible light.