Amicus717 Posted March 13, 2019 Share Posted March 13, 2019 I can think of a few interesting applications for this: https://www.fastcompany.com/90316833/scientists-have-discovered-a-shape-that-blocks-all-sound-even-your-co-workers Link to comment Share on other sites More sharing options...
craigb Posted March 13, 2019 Share Posted March 13, 2019 Wow! First new "thing" that has really impressed me in a long time! ? Then the story is immediately followed by 3D-printed tiny homes that are almost exactly the same size as a jail cell. Wonderful... ? Link to comment Share on other sites More sharing options...
JohnG Posted March 13, 2019 Share Posted March 13, 2019 (edited) When does it become commercially available? I want some. Edited March 13, 2019 by JohnG Shpeeling agin. Link to comment Share on other sites More sharing options...
craigb Posted March 13, 2019 Share Posted March 13, 2019 Will they make some equipped with muzzles? I know some people... ? Link to comment Share on other sites More sharing options...
paulo Posted March 14, 2019 Share Posted March 14, 2019 "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." Am I the only one who could hear some of it before he took the thing out then? 1 Link to comment Share on other sites More sharing options...
Amicus717 Posted March 14, 2019 Author Share Posted March 14, 2019 I think the writer was being hyperbolic. I could hear a bit, but the difference made by removing the ring was still pretty impressive, especially when you consider the ring wasn't blocking the tube opening at all. Link to comment Share on other sites More sharing options...
craigb Posted March 14, 2019 Share Posted March 14, 2019 2 hours ago, paulo said: "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." Am I the only one who could hear some of it before he took the thing out then? Yes, you are the only one. ? Link to comment Share on other sites More sharing options...
paulo Posted March 14, 2019 Share Posted March 14, 2019 Note to self.......remember that craigb is deaf. 2 Link to comment Share on other sites More sharing options...
craigb Posted March 14, 2019 Share Posted March 14, 2019 What? 2 Link to comment Share on other sites More sharing options...
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