The urinals are not known for being clean. Splashback is a problem for those that clean our bathroom.
Scientists at the University of Waterloo in Canada designed the perfect urinal.
"I think most of us have been a little inattentive at our post and looked down to see we were wearing speckled pants," said a mechanical and mechatronics engineering professor at Waterloo. Wouldn't it be great to create a urinal where pee isn't very likely?
Physicists have finally figured out how to design a urinal that cuts back on splatter – the idea originated exactly where you think it did https://t.co/bF8dlynEIg
— New Scientist (@newscientist) November 28, 2022
Finding the best angle for a stream to hit the porcelain was the first step in designing a pee-predicament-prevention urinal.
Dogs lived up to their name here. Pan and his team used simulations of how dogs pee to find the "magic angle" at which there's as little splash back as possible.
The research was moved into a lab by shooting water at different angles and at different types of urinals. These were made of a dense foam coated in a substance.
The scientists soaked any stray liquid in paper towels and weighed it against their dry weight to find out which sprays were the messiest. The more liquid the better.
The team concluded that the "magic angle" for pee to hit a urinal was 30 degrees. The scientists tinkered with their designs so that the stream stays as close to that angle as possible.
They found that the "Nauti-Loo" was the best design for most heights. The cheekily named urinal is long and narrow compared to conventional ones. It forms a triangular lip at its bottom.
Conventional urinals produced up to 50 times more splashback than their premier design.
If you go to the public bathroom and see pee everywhere, you may wish it had the Nauti-loo.
There is a public toilet that requires a code to access.
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