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Originally Posted by papageno
What is "field" in this context? Do you mean "medium", perchance?.
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I suppose either word could be used. I chose field.
http://en.wikipedia.org/wiki/Isotropic
Originally Posted by aastrotech
Anisotropy refracts waves.
Quote:
Originally Posted by papageno
Can you show us how that works?
As far as I understand, inhomogeneity of the medium yields refraction..
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If you've seen a video of an explosion in clear air where you can see the shockwave expand out from the explosion then what you are seing is the change in pressure in the shockwave refracting the light waves passing through it. In effect one wave refracting another wave.
Quote:
Originally Posted by papageno
What if we have a spherical wave?.
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Then it would be anisotropic to the surrounding field.
Originally Posted by aastrotech
High anisotropy equals high energy.
Quote:
Originally Posted by papageno
Can you show us how that works?.
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A ripple has low anisotropy and low energy a tsunami has high anisotropy and high energy.
Originally Posted by aastrotech
The geometry and anisotropy of some waves is such that the strong anisotropc effects of part of the wave refracts other parts of the wave and vice versa in a geometric harmony so that the wave sort of chases its own tail.
Quote:
Originally Posted by papageno
Are you saying that different parts of the same wave affect each? Is this some sort of action at a distance, or have you something like a double slit setup in mind?.
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I'm talking about a complicated wave form here that could as easily be understood as two waves refracting each other.
Originally Posted by aastrotech
This can be visualized as something of a pucker in a field. A high energy, (relatively) stationary wave is strongly anisotropic internal to itself and exerts a weaker and in a vastly broader spacial extent relative to its strong internal anisotropy a weak anisotropic effect on the isotropic field around it createing a field of anisotropy more anisotropc near it than that farther from the pucker. This can be visualized as the "pucker" "pulling" on the field.
Quote:
Originally Posted by papageno
Sorry, but this is just word salad..
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I don't appreciate the snippy tone. Kindly watch your tone in the future.
You don't really ask a question here but I see from your other failures that an analogous description might help.
Imagine a piece of plastic wrap stretched over the top of a bowl. It's smooth or isotropic. A wave moving across will travel smoothly. Imagine a spatter of hot grease landing on the plastic and burning a pucker in it. Obviously the pucker is not smooth thus it is anisotropic. But the pucker also pulls on the unburned surrounding plastic increasing the overall tension and therefore the anisotropy around it. Greater near the pucker and less farther away. A wave then travrling across the plastic will be refracted by the resulting anisotropy. However I don't want to characterize the specific dynamic of the anisotropy mentioned in the OP as "tension". It could be "thinning", "softening", "hardening" "dispersing" "time dialating" etc. the point is changing the isotropy and therefore the index of refraction of the field.
Quote:
Originally Posted by papageno
Since when do lenses change the frequency of the light?.
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At that point I was talking about a sub quantum level change,
Quote:
Originally Posted by papageno
I think you need to study more rigorously the behaviour of waves.
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I think you need to brush up on terminology then talk to me about behaviour..