Assertion: light bulb's color temperature | /r/HasProperty | measured
Facets:
value: by comparing it
type: MANNER
value: scientifically
type: MANNER
value: commonly
type: DEGREE
Source sentences:
text: Light color, or color temperature, is measured using the Kelvin scale.
text: Scientifically, color temperature is commonly measured using the Kelvin scale.
text: The color temperature of light is measured by comparing it to the color emitted by a black-body radiator heated to a specific temperature.