On Tue, 04 Apr 2006 19:34:19 GMT, Cecil Moore
wrote:

Here is it again assuming a lossless transmission line:

Source-----------a-BB-b-------------c-BB-d-----------open

The current measured at 'a' is one amp.
The current measured at 'b' is zero amps.
The current measured at 'c' is zero amps.
The current measured at 'd' is one amp.

What are the possibilities for what could be in the
black boxes?

There is a zero length 4th dimensional coax connecting ad and bc
bridging the Casimir void between b and c.

Can you deny the 4th dimension exists?