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Réaumur scale
Sign in to saveAlso known as Reaumur scale, Réaumur, Reaumur, °Ré, °R, °Re
temperature scale in which water freezes and boils at 0 and 80 degrees, respectively
Wikidata facts
- Instance of
- unit of thermodynamic temperature
- Named after
- René Antoine Ferchault de Réaumur
- Image
- Old Réaumur scale thermometer - IMG 0983.JPG
Show 9 more facts
- discoverer or inventor
- René Antoine Ferchault de Réaumur
- time of discovery or invention
- 1731-01-01
- described by source
- Armenian Soviet Encyclopedia
- Wikidata SPARQL query equivalent
- wd:Q223061 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)
- Commons category
- Thermometers showing Réaumur temperature
- conversion to SI unit
- 1.25
- measured physical quantity
- thermodynamic temperature
- different from
- Rømer scale
- unit symbol
- °Ré
Sources (1)
via Wikidata · CC0
~4 min read
Encyclopedic overview
Old thermometer in a pharmacy in Vienna, showing room temperature by Réaumur scale. Réaumur and Celsius scale on thermometer. Private collection, central Europe. The Réaumur scale ( French pronunciation: [ʁeomy(ː)ʁ]; °Ré, °Re, °r), also known as the "octogesimal division", is a temperature scale for which the freezing point and boiling points of water are defined as 0 and 80 degrees respectively. The scale is named for René Antoine Ferchault de Réaumur, who first proposed a similar scale in 1730.
Change in scale
Excerpted from Wikipedia’s “Réaumur scale” article, available under the CC BY-SA 4.0 licence.