Splash-free urinals: Design through physics and differential equations

(academic.oup.com)

22 points | by gradus_ad 15 hours ago ago

21 comments

  • 0cf8612b2e1e 14 hours ago ago

    I cannot say I have a big problem with urinal design, but I do take significant issue with standard installation practices. I am an average height dude, yet many urinals seem to be installed as if the intended audience are all basketball players. Far too high such that I can imagine a decent chunk of users might have to aim up and or stand on their toes.

    • yummypaint 13 hours ago ago

      I was expecting you to say the opposite thing! In North Carolina they are so low that the stream angle ends up much steeper than intended, like trying to use a boy's urinal. I'm tall, but still fit normally in cars etc. There should really be more variation in mounting height, or bring back those tall ones that work universally. I guess it's cheaper to make them small but mounting the flush handle below penis height is asking for trouble.

      • 0cf8612b2e1e 12 hours ago ago

        That’s the real solution -bring back full height urinals.

    • 2PqboPPmKegvanx 14 hours ago ago

      >I do take significant issue with standard installation practices

      I just don't understand why there is no middle option. Either on the ground for a 6 year old or set up for a 2m+ man.

      • jimmaswell 11 hours ago ago

        This is perplexing because I've been all over the country, coast to coast and north to south and to Canada, and never encountered this despite being shorter than the person you're responding to (who is actually well above-average height..)

    • jimmaswell 14 hours ago ago

      How tall are you and where do you live? I'm dead-on average US male height (5'9") and I've never experienced this.

      • undefined 14 hours ago ago
        [deleted]
      • 0cf8612b2e1e 12 hours ago ago

        5”11. Not everywhere, but it has happened enough that I have noted my annoyance.

  • unified101 14 hours ago ago

    For those looking: Fig 4a, the right 2 designs are the winner. https://academic.oup.com/view-large/figure/512223725/pgaf087...

    I do recall there was another story of putting a "target" at the right place in existing urinals significantly improved cleanliness

    • pupppet 12 hours ago ago

      Have fun cleaning Cornucopia.

  • Founderarcstone 15 hours ago ago

    Quality of life upgrade for all males

    • Infinint 14 hours ago ago

      Janitorial services are equal opportunity

  • slicktux 14 hours ago ago

    When I use a urinal I do not aim directly on front but instead to the curved lower part. That helps guide my urine down; virtually eliminating all splash back!

    • delichon 12 hours ago ago

      Maybe males are marginally better at geometry due to this additional hands on experience with angles and parabolas. We practice and study ballistic trajectories daily.

    • jimmaswell 14 hours ago ago

      other people are just standing there shooting head-on?

  • hmartiniano 14 hours ago ago

    Someone please nominate this for the Ig Nobel Prize.

    • dgrin91 14 hours ago ago

      I'm not sure if you were joking but they actually won it this year

      • hmartiniano 14 hours ago ago

        Thanks, I wasn't aware of this. It was jut the first thing that popped into my mind when I read the title. I wasn't the only one, apparently :)

  • seki285 14 hours ago ago

    Finally research I can get behind.

    • __alexs 14 hours ago ago

      You probably want to stand in front of it in this case.

    • khazhoux 14 hours ago ago

      I stand with you, brother!