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• Weirdo 3:16 am on September 30, 2012 Permalink | Reply
  Tags: cosmos ( 45 ), note, sound ( 19 ), space ( 95 )   

  The deepest note mankind has ever detected is a B♭ that is 57 octaves below middle C. The sound is made by inflating plasma bubbles in the center of the Perseus Cluster.

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• Weirdo 7:59 am on May 17, 2012 Permalink | Reply
  Tags: black hole ( 3 ), cosmos ( 45 ), note, sound ( 19 ), space ( 95 )   

  The deepest note in the universe is emitted by a black hole, producing a note 57 octaves below middle C.

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