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Definition of Dumb hole
1. Noun. a phenomenon in which phonons (sound perturbations) are unable to escape from a fluid that is flowing more quickly than the local speed of sound. ¹
¹ Source: wiktionary.com
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1. Noun. a phenomenon in which phonons (sound perturbations) are unable to escape from a fluid that is flowing more quickly than the local speed of sound. ¹
¹ Source: wiktionary.com