Olof Celsius Olof Celsius Olof Celsius (the elder) (19 July 1670 – 24 June 1756) was a Swedish botanist, philologist and clergyman, He was a professor at Uppsala University, Sweden. Celsius was a mentor of the botanist and scientist Carl Linnaeus. Celsius wrote his most famous book on biblical plants, "Hierobotanicon", in 1745-47. Olof Celsius's nephew Anders Celsius was an astronomer who invented a temperature scale where 100 represented the freezing point of water and 0 represented the boiling point. Jean-Pierre Christin, in 1744 reversed the scale to create the centigrade scale, renamed in 1948 to the Celsius scale in use today.
Temperature which implies Since the first function is independent of "T", this temperature must cancel on the right side, meaning "f"("T","T") is of the form "g"("T")/"g"("T") (i.e. "f"("T","T") = "f"("T","T")"f"("T","T") = "g"("T")/"g"("T")· "g"("T")/"g"("T") = "g"("T")/"g"("T")), where "g" is a function of a single temperature. A temperature scale can now be chosen with the property that Substituting (4) back into (2) gives a relationship for the efficiency in terms of temperature: For "T" = 0 K the efficiency is 100% and that efficiency becomes greater than 100% below 0 K. Since an efficiency greater than 100% violates the first law of thermodynamics,