High School Feynman experiment with bullets

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The discussion centers on an experiment from Feynman's lectures involving bullets and the observed differences in diagrams between the book and a recorded lecture. Participants question whether the discrepancy is due to the proximity of the first hole to the bullet source, which they argue should disperse bullets in various directions. The consensus is that the primary focus is on the absence of an interference pattern, rather than the specifics of the diagrams. The quality of the illustrations is debated, but ultimately, the situation is viewed as a hypothetical scenario lacking precise measurements. The key takeaway is that the experiment illustrates the concept of no interference, regardless of the diagram's accuracy.
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Hello, I have a question. In Feynman lectures vol. I, in chapter 37-2, Feynman has an experiment with bullets.
wwiC7XV.png

*Copyright http://www.feynmanlectures.caltech.edu/III_01.html
But the curve for ##P_{12}## looks in the picture is different from his live recorded lectures.
7FQAmlI.png

*YouTube -

Is the difference because of the first hole (in video) right after bullet source? If it's that close to source it should shoot bullets to all sides like in the book, or not? Thanks for answers.
 

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It looks different because it is just a sloppy illustration. The point is that there is no interference pattern. We don't really care if there is one maximum in the middle or two maxima on either side. In either case, it is just an example of no interference. I can't say if the diagram in the book is sloppy, or if the diagram in the lecture is sloppy, because it is just a hypothetical situation with no hard numbers.
 
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Thread 'Two equivalent statements of time reversal symmetric Hamiltonian'

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