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* Normal human body temperature is 36.8 °C ±0.7 °C, or 98.2 °F ±1.3 °F. The commonly given value 98.6 °F is simply the exact conversion of the nineteenth-century German standard of 37 °C. Since it does not list an acceptable range, it could therefore be said to have excess (invalid) precision.
Fahrenheit (°F) Rankine (°R or °Ra), which uses the Fahrenheit scale, adjusted so that 0 degrees Rankine is equal to absolute zero. Unlike the degree Fahrenheit and degree Celsius, the kelvin is no longer referred to or written as a degree (but was before 1967 [1] [2] [3]). The kelvin is the primary unit of temperature measurement in the ...
In the United States, the Fahrenheit scale is the most widely used. On this scale the freezing point of water corresponds to 32 °F and the boiling point to 212 °F. The Rankine scale, still used in fields of chemical engineering in the US, is an absolute scale based on the Fahrenheit increment.
Fahrenheit Rankine; Absolute zero [A] 0 K −273.15 °C −459.67 °F 0 °R Boiling point of liquid nitrogen: 77.4 K −195.8 °C [20] −320.4 °F 139.3 °R Sublimation point of dry ice: 195.1 K −78 °C −108.4 °F 351.2 °R Intersection of Celsius and Fahrenheit scales [A] 233.15 K −40 °C −40 °F 419.67 °R Melting point of ice [21]
f °F to k K: k = f + 459.67 / 1.8 k K to f °F: f = k × 1.8 − 459.67; There is also an exact conversion between Celsius and Fahrenheit scales making use of the correspondence −40 °F ≘ −40 °C. Again, f is the numeric value in degrees Fahrenheit, and c the numeric value in degrees Celsius: f °F to c °C: c = f + 40 / 1.8 ...
Subsequently, that mean was widely quoted as "37 °C or 98.4 °F" [42] [43] until editors realized 37 °C is equal to 98.6 °F, not 98.4 °F. The 37 °C value was set by German physician Carl Reinhold August Wunderlich in his 1868 book, [ 44 ] which put temperature charts into widespread clinical use. [ 45 ]
98.6°F, a historical value for the average normal human body temperature "98.6" (song), a song by Keith; 98.6, a novel by Ronald Sukenick; 98.6 ZHFM, a Classic Hits FM radio station in New Zealand; DRG Class 98.6, a steam locomotive which has been renamed as Bavarian D VIII; 98.6 Degrees: The Art of Keeping Your Ass Alive, a survival book by ...
Old thermometer in a pharmacy in Vienna, showing room temperature by Reaumur 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", [1] is a temperature scale for which the melting and boiling points of water are defined as 0 and 80 degrees ...