urinal splash cake problem scientists protractor ruler

In November 2013, the Splash Lab presented "Urinal Dynamics," demonstrating with high-speed experiments that reducing the impact angle, aiming at a vertical surface, and moving closer minimize splashback, effectively offering the first practical, physics-based mitigation guidance for urinals.

So essentially, a bunch of scientists drank a bunch of water

And then aimed a bunch of different ways

And they recorded the results

And this is science so obviously

They did it with a protractor

And a ruler