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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.
For an exact conversion between degrees Fahrenheit and Celsius, and kelvins of a specific temperature point, the following formulas can be applied. Here, f is the value in degrees Fahrenheit, c the value in degrees Celsius, and k the value in kelvins: f °F to c °C: c = f − 32 / 1.8 c °C to f °F: f = c × 1.8 + 32
For example, the freezing point of water is 0 °C and 32 °F, and a 5 °C change is the same as a 9 °F change. Thus, to convert from units of Fahrenheit to units of Celsius, one subtracts 32 °F (the offset from the point of reference), divides by 9 °F and multiplies by 5 °C (scales by the ratio of units), and adds 0 °C (the offset from the ...
The degree Celsius (°C) can refer to a specific temperature on the Celsius scale as well as a unit to indicate a temperature interval (a difference between two temperatures). From 1744 until 1954, 0 °C was defined as the freezing point of water and 100 °C was defined as the boiling point of water, both at a pressure of one standard atmosphere.
Most scientists measure temperature using the Celsius scale and thermodynamic temperature using the Kelvin scale, which is the Celsius scale offset so that its null point is 0 K = −273.15 °C, or absolute zero. Many engineering fields in the US, notably high-tech and US federal specifications (civil and military), also use the Kelvin and ...
In the 19th century, most books quoted "blood heat" as 98 °F, until a study published the mean (but not the variance) of a large sample as 36.88 °C (98.38 °F). [40] Subsequently, that mean was widely quoted as "37 °C or 98.4 °F" [ 41 ] [ 42 ] until editors realized 37 °C is equal to 98.6 °F, not 98.4 °F.
The whistleblower report included a complaint that Hegseth was “totally sloshed” at a 2014 event in Virginia Beach and needed to be carried to his room because “he was so intoxicated.”
British thermal unit (International Table) BTU IT = 1.055 055 852 62 × 10 3 J: British thermal unit (mean) BTU mean: ≈ 1.055 87 × 10 3 J: British thermal unit (thermochemical) BTU th: ≈ 1.054 350 × 10 3 J: British thermal unit (39 °F) BTU 39 °F: ≈ 1.059 67 × 10 3 J: British thermal unit (59 °F) BTU 59 °F: ≡ 1.054 804 × 10 3 J ...