Carl Sorenson wrote in 24406
I assumed from this that before 1954 the triple point did not figure into the definition, and therefore the definition was based on the freezing and boiling points of water. If Celsius and Centigrade have always been considered interchangeable terms for the same thing, then the differences I suggested in the last email are wrong, but I don't know of any authoritative source for this.Carl
When he wrote that I assume that he had not received my USMA 24405 in which I quoted resolutions of CIPM and CGPM. Otherwise I can't imagine what he would consider to be an authoritative source.
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Joseph B. Reid
17 Glebe Road West
Toronto M5P 1C8 Telephone 416-486-6071
