Assertion: cathode ray tube | /r/HasProperty | evacuated glass envelope
Facets:
Source sentences:
text: The cathode ray tube (CRT) is an evacuated glass envelope containing an electron gun (a source of electrons) and a fluorescent screen, usually with internal or external means to accelerate and deflect the electrons.
text: A CRT is an evacuated glass tube.
text: Cathode ray tubes are evacuated glass tubes that have two electrodes and are used to "excite" electrons, forcing them to release photons, or particles of light.
text: A cathode ray tube is an evacuated glass envelope having a cathode at the back, and an anode some distance in front of it.
text: The cathode ray tube (CRT), invented by German physicist Karl Ferdinand Braun in 1879, is an evacuated glass envelope containing an electron gun (a source of electrons) and a fluorescent screen, usually with internal or external means to accelerate and deflect the electrons.