By determining an ideal impingement angle — the angle between a liquid stream and a solid surface — the research team was able to design a receptacle that reduces the backspray of urine to almost nothing. Pan, together with professors and students from Waterloo and Weber State University in Utah, has been working on the project for nearly five years. He said conference-goers were amazed by the fun aspect of the research, but few identified the cutting-edge physics behind it. Initially the team had to consider a fundamental question on the physics of droplets: At what impinging angle would splash not occur? “By doing this, they reduce the impinging angle of the jets (less splash),” Pan said.

Source: thestar December 15, 2022 18:01 UTC