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How to pronounce "hertz"

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These devices beat back and forth about 200 hertz during flight,

ted-talks_1674_MichaelDickinson_2013X-320k

Duration: 5s Details

They share a frequency range between 2,000 and 5,000 hertz, where our ears happen to

Why Do Some Noises Make You Cringe

Duration: 6s Details