This is the world’s quietest anechoic chamber, absorbing 99.99% of sound and reaching −20.6 dB, so silent you can hear your own heartbeat, blood flow, and even the sound of your joints moving.

发布时间: 2025-09-09 06:00:08

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This is the world’s quietest anechoic chamber, absorbing 99.99% of sound and reaching −20.6 dB, so silent you can hear your own heartbeat, blood flow, and even the sound of your joints moving.
有趣
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13小时前由 non aesthetic things 提交

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