BTW for those of you who wonder how this sub-thread affects the proposed formula or the practical implementation of it, well it doesn't ! This sub-thread is entirely academic in nature. OK, so onto the sub-thread at hand, I think I see the misunderstanding between Nicholas and myself re. scale and offset. I should have initially said that degC is just offset "relative to degK" rather than "relative to absolute zero". Sorry for the confusion. I trust you now agree with me that degC is simply offset relative to degK while degF is both offset and scales relative to degK. regards Peter 2008/6/16 Peter Badcock <peter.badcock@xxxxxxxxx>: > Is it not also true that 1 degK = 1/100th of freezing to boiling ? If so > then the degK scale matches the degC scale. I agree there is nothing > special about that scale, but they do match. So when concerting degK to > degC, you only need to offset by 273.15, there is no scaling involved. When > converting degK to degF you must apply an offset and a scale. > > Peter > > 2008/6/16 Nicholas O. Lindan <nolindan@xxxxxxxxxxxxx>: > >> "Peter Badcock" <peter.badcock@xxxxxxxxx> >> >> >> Note that I said "relative to absolute zero". DegC IS only offset >>> relative to 0degK, whereas degF is scaled AND offset relative to 0degK. >>> >> >> Round not conceded. >> >> Both are scaled. Both are offset. >> >> At absolute zero the temperature is 0.00 in both >> the Kelvin and Rankine scales >> >> Offset: >> 0 Centigrade = 273 Kelvin or Absolute zero = -273C >> 0 Fahrenheit = 476 Rankine or Absolute zero = -476F >> >> Scale: >> 1 degree centigrade is 1/100 of freezing to boiling >> 1 degree Fahrenheit 1/180 of freezing to boiling >> >> There is nothing special about either scale. >> >> >> Nicholas O. Lindan >> Cleveland Engineering Design, LLC >> Cleveland, Ohio 44121 >> >> >> ============================================================================================================= >> To unsubscribe from this list, go to www.freelists.org and logon to your >> account (the same e-mail address and password you set-up when you >> subscribed,) and unsubscribe from there. >> > >