did-you-kno: The quietest place on Earth is an acoustics and architecture test facility in Minnesota. The -9 decibel level is overwhelming because you can easily hear your own heartbeat, breathing, and stomach gurgles. Most people can’t last 20 minutes

did-you-kno: The quietest place on Earth is an acoustics and architecture test facility in Minnesota. The -9 decibel level is overwhelming because you can easily hear your own heartbeat, breathing, and stomach gurgles. Most people can’t last 20 minutes

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from: https://bn3xox.tumblr.com/post/100338786974