Assertion: detector's source | /r/HasProperty | light
Facets:
value: in the nearby large magellenic cloud
type: LOCATION
value: so far as
type: OTHER
Source sentences:
text: Photoelectric smoke detectors have a light source that’s pointed into a sensing chamber, and when smoke particles enter the chamber, they reflect light onto the sensor, triggering the alarm.
text: The field of neutrino astronomy is still very much in its infancy – the only confirmed extraterrestrial sources so far as of 2018 are the Sun and the supernova 1987A in the nearby Large Magellenic Cloud.