UM-Bot Posted December 4, 2017 #1 Share Posted December 4, 2017 (IP: Staff) · An animated GIF of a jumping pylon seems to create the illusion of sound even when there is none. http://www.unexplained-mysteries.com/news/313855/silent-animation-makes-a-thudding-sound 7 Top Link to comment Share on other sites More sharing options...
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