Attention: scientists have finally figured out how to avoid the dreaded "splash back" when using the toilet or urinal.

Two physicists at Brigham Young University used high-speed cameras to record footage of simulated urine streams.

They found that the main reason for "splash back" is the way the streams of urine turn into droplets as they fall. When droplets hit water one after another, they cause more splashing in unpredictable ways.

Here are the four things they said men should do to avoid "splash back" at the urinal:

  • Stand closer to the urinal. Around six inches away is the best. Standing closer means the stream of urine does not have time to turn into droplets.
  • Never aim at the water, if there is any.
  • Try to hit a vertical surface rather than a horizontal one (the back wall of the urinal, not the bottom of it).
  • Make your stream hit at an angle by aiming downward or off to the side.

For women, the best way to avoid "splash back" is to put some toilet paper in the water to "soften" the urine's impact with the water.

Read more: BBC

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