On Fri, Jan 11, 2013 at 11:59 AM, Roger Clough <rclo...@verizon.net> wrote:

> Physicists often do experiemnts on crystals at 0 oK or near there.

There is no such thing as nearly zero just as there is no such thing as
nearly infinite or nearly pregnant; the Third law of Thermodynamics says
that you can never reach zero degrees Kelvin in a finite number of steps.
And Charles's Law was developed long before Quantum Mechanics was
discovered and even at the time it was known that it was only a
approximation of how real world gasses behaved. Charles's Law worked pretty
well at the limited temperature ranges available in the 19'th century.

  John K Clark

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