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Cake day: July 1st, 2023

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  • Krzd@lemmy.worldtopics@lemmy.worldMost popular pictures of the Olympics
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    1 month ago

    They’re a lesbian couple from China where LGBTQ people aren’t exactly accepted or welcomed by society.

    EDIT: Done some research and I couldn’t find them confirming being romantically involved, however there’s a different image where Chang (the one being carried) makes a heart shape with her arm, so who knows really ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯












  • No I think you’re right about the fluid dynamics aspect, as we do have an indefinitely long pipe, but in the prompt the walls do still exist, so they’ll probably do create some friction. The question is, would the rocks build up some sort of boundary layer of slower flowing particles near the wall, and how much do the boundary layer and “main” center flow mix?

    Thinking about it, it isn’t even an indefinitely long pipe really, as there are no “new” sections of wall coming up, instead it’s constantly passing the same section of wall, and same section of boundary layer…

    If someone knows how to simulate this in a physics engine or virtual air tunnel I’d be really interested in that!