Re: Physics or metaphysics?

[Herbert H Gottlieb <herbgottlieb@JUNO.COM>]

On Mon, 17 Nov 2003 21:54:29 -0500 "John S. Denker" <jsd@AV8N.COM> wrote:
>    When faced with a pathological case, do the
>    corresponding non-pathological case.  Then,
>    at the end, pass to the limit (if necessary).
>
> There are tons of examples where this works
> beautifully.
>    >
>       example: lots of "DC" circuits don't
>       make sense at zero frequency.  You have to
>       consider the case where some things are
>       slow compared to other things, and then
>       (if necessary) pass to the limit.

What do you mean by a "DC" circuit in the above example?
Obviously it could not be a simple circuit with only
simple resistors and a battery. Are you referring to
dynamic dc circuits such as those containing capacitors
that start to charge and then discharge through other circuit
elements before they reach saturation?

Herb