Scale of temperature the Swedish astronomer Anders Celsius (1701–1744), who developed a similar temperature scale two years before his death. 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 or an uncertainty). 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. Although these defining correlations are commonly taught in schools today, by international agreement the unit "degree Celsius" and
Anders Sandøe Ørsted Anders Sandøe Ørsted Anders Sandøe Ørsted (21 December 1778, Rudkøbing – 1 May 1860) was a Danish lawyer, politician and jurist. He served as the Prime Minister of Denmark in 1853–1854. He studied philosophy and law at Copenhagen and was admitted to the bar in 1799. He became a noted jurist. An early case overseen by him was that of Hans Jonatan, an escaped slave, which was (at least viewed retrospectively) a major test case in Danish law on slavery; Anders condemned Hans to be returned to the West Indies, where he had been purchased (Hof-og Stadsret: "Generalmajorinde Henriette de