18 Oct
1998
18 Oct
'98
11:44 a.m.
And the millifarad. If you want to get an odd look, go
into an
electronics shop and ask for a 2.2 millifarad capacitor. Nothing wrong
with the unit AFAIK but nobody seems to use it other than me :-)
Here in the US, it's rare to see nanoFarads used as a unit - it's
far more common to see a 2.2nF capacitor referred to as a 0.0022uF
or as a 2200pF unit. This is an extension of the days when
"microFarad" was "mF", and the next subdivision was
"micro-micro-Farad",
or "mmF".
I believe that "mmg" is still used as a prefix in medical fields,
but here it means (as far as I can figure out) "millimicrogram".
Can someone correct me on this (I'm sure I'm wrong!)
Tim.