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Why do hot and cold water sound different?
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Why do hot and cold water sound different?

Here’s a fun little science mystery: cold water sounds crisp and bright when poured, while hot water makes a softer, lower sound. Researchers found that hot water forms larger air bubbles, which produce lower-frequency sounds. The difference may come from water molecules moving more freely when they’re warmer. The study is still awaiting formal peer review, but it offers a fascinating explanation to try out in your own kitchen.
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