File:Crookes_radiometer.jpg · Wikimedia Commons · See Wikimedia Commons
radiometer
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thumb|210px|An example of a Crookes radiometer. The vanes rotate when exposed to light, with faster rotation for more intense light, providing a quantitative measurement of electromagnetic radiation intensity. A radiometer is an instrument for measuring radiometric quantities such as radiant flux (power), irradiance, or radiance. Definitions typically limit radiometry to optical radiation, but some definitions include other kinds of electromagnetic radiation. Radiometers typically measure infrared radiation, visible radiation (light), ultraviolet radiation, or some combination of these.
In the Vinony graph
Within Vinony's link graph, radiometer is referenced by 260 other articles, and connects out to light, Nicolaus Copernicus and ultraviolet radiation.
It is catalogued under topics including Electromagnetic radiation meters and Radiometry.
Its subject is documented across 37 Wikipedia language editions.
Wikidata facts
- Subclass of
- measuring instrument
- Image
- Crookes radiometer.jpg
Show 3 more facts
- Commons gallery
- Light mill
- Commons category
- Radiometers
- described by source
- Encyclopædia Britannica 11th edition
Sources (2)
via Wikidata · CC0