Re: Classical EM Wave Propagation, attn: Androcles
- From: "Androcles" <Androcles@ MyPlace.org>
- Date: Wed, 28 Sep 2005 21:22:58 GMT
"sue jahn" <suzysewnshow> wrote in message
news:op.sxtzhnnc1v3b7x@xxxxxxxxxxxxxxxxxxxxxx
| A. Length of arrows is constant. cos^2+sin^2 = 1. Energy is conserved.
| It flips from moving mass to compressed/stretched spring and back
again,
| from E-field to B-field and back again.
|
| S. There is no energy to conserve 'till you intercept the wave
| with some matter.
You are confusing "CONserve" with "OBserve".
Conservation:
2 : the preservation of a physical quantity during transformations or
reactions
Observation:
2 a : an act of recognizing and noting a fact or occurrence often
involving measurement with instruments
The structure of that matter will determine the
| near-field E/H ratios. AE didn't mention, (or didn't know) that his
| moving *observers* have an aperture of about 1/2 wavelength.
|
| http://www.conformity.com/0102reflectionsfig3.gif
|
| > One hand clap sideways, other hand clap up-down makee
plopagationnoisee.
|
|
| S.Nope. This way:
|
http://web.mit.edu/8.02t/www/802TEAL3D/visualizations/light/EBlight/E...
|
| A. Definitely and emphatically NOT. Energy zero, created from nothing?
| Sorry, you can NOT have a null B-field and a null E-field at the same
| time, which is what that diagram shows.
|
| S. It happens on the
Androcles.
.
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