[ARC5] SI Units - Careless Errors Abound

[Mike Morrow]

> mHz is correct for millihertz. It is used, and correctly.

True, as my note explained.  However, when was the last time someone
you knew used mHz and actually meant millihertz.  Limiting ourselves
for the moment to this list only, my money says never.

> I believe, to simplify things, when a quantity is named after a person, it
> is correct to capitalize. 

True for the unit symbol or abbreviation, as my note explained.

> When it's [with] a multiplier, it is lower case.

You are stating that when the unit symbol follows a prefix representing some
multiple or fraction, the unit symbol may be lower case.  That is NOT correct
if the unit symbol represents a proper name.  When done so, it's just an example
of carelessness or ignorance of the accepted convention. 

Mike / KK5F