On Apr 19, 2:59 pm, Richard Clark wrote:
On Thu, 19 Apr 2007 14:11:21 -0700, Jim Kelley
wrote:

Cecil Moore wrote:

How do two waves cancel without interacting?

No interaction is required in order for fields to cancel. Only that
they occupy the same space at the same time and be of the correct
amplitude and phase.

And are put into a load.

As waves are completely independant, then they never interact. A load
is required to reveal the cancellation. No load, and any issue of
cancelling fields is strictly limited to what goes on between the
ears.

73's
Richard Clark, KB7QHC


If nobody is there to hear it, does a tree that falls in the middle of
the forest (or anywhere else) make a noise? If there's a field and
nobody is there to measure it, is it there? If there's a summation to
zero and there's nobody there to verify that the summation really
occured, did it occur? Wheeee! Where will this take us next? Beaker
is soooo excited by the possibilities.

From the labs,
Bunsen