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Op 27-9-2022 om 19:24 schreef Bald Eagle:
> "jr" <cre### [at] gmailcom> wrote:
>
>> from the mannequin's POV, along the top-outside-corner of each rail, that is,
>> I'd expect most wear on the inner "edges" due to the wheel shape.
>
> It's an interesting thing, those train wheels:
>
> https://www.youtube.com/watch?v=y7h4OtFDnYE
>
Oooh! LOL! indeed. That was a smart explanation by Richard Feynman.
Thanks for this!
--
Thomas
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