190 This professor bounces sound waves carrying music that can not be heard out loud but can be heard inside your head.. This experiment was carried out at a college and I believe he played an Eagle's song.. Look at the student's reactions... (twitter.com) posted 1 year ago by purkiss80 1 year ago by purkiss80 +190 / -0 31 comments share 31 comments share save hide report block hide replies
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