Réaumur

During this year's excursion with the Museumsgesellschaft, I visited some cultural highlights on the north bank of Lake Konstanz and saw two thermometers scaled in Celsius and Réaumur.

In my school years, I remember learning about degrees Celsius, Fahrenheit, and Réaumur. Later in my studies, Kelvin became vital because it is the fundamental temperature scale in physics. You still need Fahrenheit in the States to choose the proper clothing before leaving the house.

Degrees Réaumur are easily converted to centigrade by multiplying by 1.25. Are degrees Réaumur still used? Wikipedia says cooks and pâtissiers still measure temperatures in Réaumur when preparing a sugar solution.

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