Re: CHAT: Need a word for these!
|From:||Christophe Grandsire <christophe.grandsire@...>|
|Date:||Wednesday, January 30, 2002, 21:45|
En réponse à John Cowan <jcowan@...>:
What's the use of urn:? I've never seen it in my life.
> Wow, I always think of Ohm's law as R=I/V. To me "URI" suggests
> Uniform Resource Identifier, one of those things beginning http://
> or ftp:// or urn:. (The ones that don't begin with urn: are
> Uniform Resource Locators, or URLs.)
> Why U for voltage/electromotive force?
In France, V is used for the potential itself. Potential differences are marked
by U, so that we don't mistake potential (defined relative to an arbitrary
constant) to electromotive force (defined absolutely). The difference is
little, but believe me, it helps quite a lot to prevent simple mistakes. It's
also quite useful when talking about motion driven by electric forces, since v
is then taken for velocities :)) .
He he, blame it on the French tendency to classify everything using labels that
should be usable in any context :)) .
Take your life as a movie: do not let anybody else play the leading role.