Physicists have designed a urinal that drastically reduces splashback


Scientists used observations of the angle at which dogs urinate and laboratory tests with jets of fluid to design a urinal that produces far less splatter than usual


22 November 2022

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The researchers favour the design second from the right, which minimised splash and is accessible for most people of most heights

Mia Shi at University of Waterloo

Laboratory tests using a jet of water have helped physicists determine the ideal angle of urination to minimise splashback at a urinal, and led to an elongated design for urinals that drastically reduces splatter.

“The idea originated exactly where you think it did. I think most of us have been a little inattentive at our post and looked down to find we were wearing speckled pants,” says Zhao Pan


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