Recent content by photonographer

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    B Feynman QED Questions

    Thanks for your explanations. Yes, you found the quote that I meant. I had some typos, "when" should have been "to be where" I guess I didn't expect Feynman's explanations to be so handwavy, even though the introduction by Anthony Zee talks about how it teaches people to "pour all the pebbles...
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    B Feynman QED Questions

    As mentioned by @weirdoguy, the book name is QED by Richard Feynman. This is the 2006 printing but I don't believe it matters because the Feynman text is likely the same. [Moderator's note: Some off topic content deleted.]
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    B Feynman QED Questions

    Figure 22 - Why does Feynman say that the different lengths A to M are so minor that he is going to ignore them but the time difference differ by the same amount and they are not ignored. Was it just the same for the drawing representation of the arrows? Figure 24c - Why are different paths A...
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