Assertion: cathode ray tube | /r/HasProperty | useful
Facets:
value: for displaying photos
type: PURPOSE
value: by itself
type: MANNER
value: in science
type: LOCATION
Source sentences:
text: CRTs are useful for displaying photos with high pixels per unit area and correct color balance.
text: Cathode ray tube was a useful invention in Science for the discovery of an important fundamental particle like electron and also opened up newer arenas of research in atomic Physics.
text: Not only was the cathode ray tube a useful research tool by itself, but in suitably modified and refined form, it was the heart of the oscilloscope (first known as the cathode ray oscilloscope), the television set and displays for computers and video equipment.
text: CRTs are useful for displaying photos with high pixels per unit area and correct color balance.