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Post AvqoOIq706InoLv2Yq by [email protected] |
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Post #AvqoOIq706InoLv2Yq by [email protected] |
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In 1995 the UK changed its emergency vehicle siren sound from the old "Nee… |
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Post #AvqoOIxCZjyQALEhc0 by [email protected] |
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@nigelharpur Hearing the Doppler effect in a constantly changing siren noise is… |
