The Surprising Fact That Humans Can Hear the Difference Between Hot and Cold Water

This is one of those weird things that sounds impossible, but the moment you listen to the sound it’ll make perfect sense.

Science presenter Steve Mould filled in for an episode of Tom Scott‘s series “Things You Might Not Know” to reveal the surprising fact that humans can hear the difference between and hot cold water while it is being poured.

Although it may seem unlikely, the reason is due to the viscosity of fluids changing with temperature.