On Tue, 8 Jun 2010 03:57:44 -0700 (PDT), Keith Dysart
wrote:

Just for fun, here is a simple example.

-sigh-

No wonder traffic dies here. This stuff is a wheeze:

The source is no longer
providing energy,

If it had been a battery instead, then the battery would have as much
energy as it had the moment before - (minus) the few coulombs taken
during the short step interval.

Stick with the topic, draw from authorities (that are agreeable to all
parties) that demonstrate the concepts at the bench using the ordinary
tools of the trade (well, ordinary for a Metrologist, perhaps, but is
increasingly available at Ham fests) on actual equipment (what we
actually use in the Shack).

73's
Richard Clark, KB7QHC