Re: supplementary S.I. units

[jmclean@chem.ucsd.edu (James Mclean)]

Donald E. Simanek wrote:
> There are measurable quantities which are dimensionless. Some are given
> unit names, some are not. Specific gravity, being a ratio of two
> densities, is dimensionless, and has no unit name. Pi, the ratio of
> circumference to diameter of a circle, is dimensionless and has no unit
> name. Index of refraction is another example.
What other quantities are dimensionless but have units?  I think perhaps
the Bell and dB qualify.  Any others?

-- 
--James McLean
jmclean@chem.ucsd.edu
post doc
UC San Diego, Chemistry