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Description
Cosmology & Action at a Distance... (V1)This book describes the subject of electrodynamics at classical as well as quantum level, developed as an interaction at a distance. Thus it has electric charges interacting with one another directly and not through the medium of a field. In general such an interaction travels forward and backward in time symmetrically, thus apparently violating the principle of causality. It turns out, however, that in such a description the cosmological boundary
This book describes the subject of electrodynamics at classical as well as quantum level, developed as an interaction at a distance. Thus it has electric charges interacting with one another directly and not through the medium of a field. In general such an interaction travels forward and backward in time symmetrically, thus apparently violating the principle of causality. It turns out, however, that in such a description the cosmological boundary conditions become very important. The theory therefore works only in a cosmology with the right boundary conditions; but when it does work it is free from the divergences that plague a quantum field theory.Shipping Notes
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4.7 ★★★★★
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Product Reviews
★★★★★ 4
Dogs seems to like them
Flavor Name: Peanut Butter, Size: 4 Ounce (Pack of 1)
Both little dogs seem to interested these
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2025
★★★★★ 5
My dogs love these!!!
Flavor Name: Peanut Butter, Size: 4 Ounce (Pack of 1)
Perfect for my pugs. Something to chew on without consuming calories.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Last longer for an aggressive chewers than other things
Flavor Name: Peanut Butter, Size: 4 Ounce (Pack of 1)
Last at least a day with an aggressive chewer
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Reviewed in the United States on April 4, 2026
★★★★★ 1
Lasted less than 60 seconds - 6 month puppy.
Flavor Name: Peanut Butter, Size: 4 Ounce (Pack of 1)
Lasted less than 60 seconds ! Stop calling a product a chew. When there is nothing lasting.
I should start returning products that are misrepresented. And stop reading reviews.
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Reviewed in the United States on February 6, 2026
★★★★★ 5
Great product
Oh my God, my dogs love these they inhale them, but I only give them one a day or even one every other day. It's perfect. It doesn't have ingredients in it that my dogs are allergic to like 99% of the treats and dog food have it so that's this is gonna be a definitely definitely thing that I'm gonna purchase for them.
My dog is allergic to furrous sulfate and why people put this in their animals foods I don't know, but they need to stop really putting things in it that doesn't really be necessary. This is great has nothing in it so hundred percent matter fact I'm reading it right now. It was for small dogs, medium dogs and large dogs. Well my dog's 130 pounds. The other one is 190 you cannot give this to puppies under three months old I don't know why but one thing is the package itself doesn't save the ingredients. Maybe this is it biscuit chicken coconut, peanut butter, some kind of starch and sorbitol, but it's only 2% so it's not bad but that is unnecessary to put in any Dog or cat for that matters.
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Reviewed in the United States on May 8, 2026
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