This is an automated archive made by the Lemmit Bot.

The original was posted on /r/explainlikeimfive by /u/mr_pytr on 2023-06-25 12:02:29+00:00.

If I run the bath and close my eyes, I can tell when the water exiting the faucet goes from cold to hot. The loud rushing sound deepens by half an octave. What causes the tone to drop?