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Thread: Which straw fills the cup first?

  1. #16
    Shelter Dweller lost in melb.'s Avatar
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    Quote Originally Posted by Pony View Post
     
    6 is blocked at the bottom. Why 2? (2 was the most common answer)
     

    If all the blocks are real it must be 2 or 3. The liquid will flow out of the hole into either 2 or 3.

    2 if the liquid flows quickly, like a waterfall.

    3 if slowly and it hugs the outside of the straw
    Last edited by lost in melb.; 07-16-2021 at 04:24 PM.

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    #DeSantis2024 Teh One Who Knocks's Avatar
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    Quote Originally Posted by Teh One Who Knocks View Post
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    Shelter Dweller lost in melb.'s Avatar
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    Quote Originally Posted by Teh One Who Knocks View Post
    Is that an upside down menorah?
    Quote Originally Posted by DemonGeminiX View Post


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    #DeSantis2024 Teh One Who Knocks's Avatar
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    Quote Originally Posted by lost in melb. View Post
    I can see my 13 years of University education has been for nothing
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  8. #22
    Basement Dweller Godfather's Avatar
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    I'm not smart enough to follow the fluid dynamics line of thought, but does it not go:
    - Path to 5 fills but is blocked.
    - Path to 4 fills but is blocked.
    - Path to 6 fills but is blocked.
    - Path to 3 fills but is blocked.
    - Water escapes and starts to fill 2.
    - Water backs up to path to 7 but is blocked.
    - Water fills to paths to 1 then 2 but is blocked.
    - Water may back up to path that allows escape over to 1, but by then the path to 2 is still filling 2.
    - Maybe there's a backup and water spills over the top to 7 and 1, but by then 2 has been filling the entire time

    My vote is 2.

    Last edited by Godfather; 07-22-2021 at 07:13 AM.

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  10. #23
    Shelter Dweller lost in melb.'s Avatar
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    Quote Originally Posted by lost in melb. View Post
     

    If all the blocks are real it must be 2 or 3. The liquid will flow out of the hole into either 2 or 3.

    2 if the liquid flows quickly, like a waterfall.

    3 if slowly and it hugs the outside of the straw
    Quote Originally Posted by Godfather View Post
     


    I'm not smart enough to follow the fluid dynamics line of thought, but does it not go:
    - Path to 5 fills but is blocked.
    - Path to 4 fills but is blocked.
    - Path to 6 fills but is blocked.
    - Path to 3 fills but is blocked.
    - Water escapes and starts to fill 2.
    - Water backs up to path to 7 but is blocked.
    - Water fills to paths to 1 then 2 but is blocked.
    - Water may back up to path that allows escape over to 1, but by then the path to 2 is still filling 2.
    - Maybe there's a backup and water spills over the top to 7 and 1, but by then 2 has been filling the entire time

    My vote is 2.

    Professional diagram.

    Or
     
    if filled slowly 3??

  11. #24
    Basement Dweller Godfather's Avatar
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    There's a fairly large ledge to get over to drip back to #3.

    Someone could build this thing in this free browser based fluid dynamics game, that would be funny but too time consuming for me

    https://dan-ball.jp/en/javagame/dust2/

  12. #25
    Hal killed Tormund! Pony's Avatar
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    Quote Originally Posted by Godfather View Post
    There's a fairly large ledge to get over to drip back to #3.

    Someone could build this thing in this free browser based fluid dynamics game, that would be funny but too time consuming for me
    You're assuming the liquid will run along the top of the straw? I think (if poured slowly) it would run down the underside of #2 straw and fill cup 3.

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  14. #26
    Basement Dweller Godfather's Avatar
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    Quote Originally Posted by Pony View Post
    You're assuming the liquid will run along the top of the straw? I think (if poured slowly) it would run down the underside of #2 straw and fill cup 3.
    Sorry when I said to get back to #3 I meant #2, I don't think it can run backward enough to #2 to fill it before #3 is full. I tried the fluid dynamics game and tried to match the angle, I don't think much liquid will run back along the edge of the straw towards #2 at all.

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