Splash-free urinals: Design through physics and differential equations

unified101•about 3 hours 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•20 minutes ago

Have fun cleaning Cornucopia.

0cf8612b2e1e•about 3 hours 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•about 2 hours 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•32 minutes ago

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

2PqboPPmKegvanx•about 2 hours 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•about 3 hours 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.

0cf8612b2e1e•33 minutes ago

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

Founderarcstone•about 3 hours ago

Quality of life upgrade for all males

Infinint•about 3 hours ago

Janitorial services are equal opportunity

slicktux•about 3 hours 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•44 minutes 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•about 3 hours ago

other people are just standing there shooting head-on?

hmartiniano•about 3 hours ago

Someone please nominate this for the Ig Nobel Prize.

dgrin91•about 3 hours ago

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

hmartiniano•about 3 hours 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•about 3 hours ago

Finally research I can get behind.

__alexs•about 3 hours ago

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

khazhoux•about 3 hours ago

I stand with you, brother!

Splash-free urinals: Design through physics and differential equations

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