John Sowa wrote: (01)
> IJ> The Kelvin (ratio) scale for temperature is dependent on the theory
> > of statistical thermodynamics. It has an absolute zero point that
> > presupposes the view that temperature at bottom is caused by, or
> > even identical to, kinetic energy.
>
> Based on his "air thermometer," Amontons estimated the temperature at
> which air pressure would be zero at the equivalent of -240 Celsius.
> That was in 1702. In 1779, Lambert improved that value to -270C,
> which he called "absolute zero." The notion of entropy and very
> good approximations to absolute zero were firmly established on
> the basis of traditional thermodynamics in the late 19th century. (02)
Everything in science has a pre-history. I would say that it is only after
the acceptance of statistical thermodynamics that the "absolute zero"
became generally regarded as the temperature that theoretically is the
lowest possible temperature. And then I would like to repeat my
metrological point: the determinates/values of a physical dimension that
has no absolute zero point cannot possibly be mapped on a ratio scale, but
perhaps on an interval scale. (03)
Ingvar J (04)
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