Scientists have discovered a shape that blocks all sound–even your co-workers
A team of Boston University researchers recently stuck a loudspeaker into one end of a PVC pipe. They cranked it up loud. What did they hear? Nothing. How was this possible? Did they block the other end of the pipe with noise canceling foams or a chunk of concrete? No, nothing of the sort. The Read more about Scientists have discovered a shape that blocks all sound–even your co-workers[…]