New Sound Proofing?

mikld03-12-2019 9:35pm

jtcf Details Discussions Posts This discussion Message User 1,617 posts 03-12-2019 at 11:15pm Copy Comment URL Report Comment Edit Delete Interesting!
acman3 Details Discussions Posts This discussion Message User 4,240 posts 03-12-2019 at 11:07pm Copy Comment URL Report Comment Edit Delete I couldn't get that link to work. Pretty cool though. https://www.fastcompany.com/90316833/scientists-have-discovered-a-shape-that-blocks-all-sound-even-y...