Pierre Abbat wrote:
>I'm proposing that the kelvin square meter per watt
>be given a short name.
If you want to see if there are other valid SI forms,
you should expand the derived units (i.e. watt). The
square metre in the numerator and denominator cancel
to give:
kelvin kilogram per cubic second
In this case it doesn't shorten it, but it sometimes
does.
>Consider the katal. There was a jargon unit used by
>biochemists called the enzyme unit, equal to a
>micromole per minute. Because this is not coherent
>with the SI, someone proposed that the mole per
>second, which isn't even that long to say, be given
>a one-word name, and the katal was born. It still
took
>a few decades to be accepted by the CGPM.
There should be some constraints on derived units.
Your example is a good one of where the derived unit
seems unnecessary.
Terry
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