{"id":167184,"date":"2023-07-09T06:23:14","date_gmt":"2023-07-09T11:23:14","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/07\/scientists-make-loudspeakers-that-can-absorb-sound-for-pure-silence"},"modified":"2023-07-09T06:23:14","modified_gmt":"2023-07-09T11:23:14","slug":"scientists-make-loudspeakers-that-can-absorb-sound-for-pure-silence","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/07\/scientists-make-loudspeakers-that-can-absorb-sound-for-pure-silence","title":{"rendered":"Scientists make loudspeakers that can absorb sound for pure silence"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/scientists-make-loudspeakers-that-can-absorb-sound-for-pure-silence3.jpg\"><\/a><\/p>\n<p>This is according to a press release by the institution published last week.<\/p>\n<p>\u201cWe wanted to reduce the effect of the membrane as much as possible, since it\u2019s heavy. But what can be as light as air? The air itself,\u201d explained Stanislav Sergeev, a postdoc at EPFL\u2019s Acoustic Group and first author.<\/p>\n<p>\u201cWe first ionize the thin layer of air between the electrodes that we call a plasmacoustic metalayer. The same air particles, now electrically charged, can instantaneously respond to external electrical field commands and effectively interact with sound vibrations in the air around the device to cancel them out.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is according to a press release by the institution published last week. \u201cWe wanted to reduce the effect of the membrane as much as possible, since it\u2019s heavy. But what can be as light as air? The air itself,\u201d explained Stanislav Sergeev, a postdoc at EPFL\u2019s Acoustic Group and first author. \u201cWe first ionize [\u2026]<\/p>\n","protected":false},"author":367,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48],"tags":[],"class_list":["post-167184","post","type-post","status-publish","format-standard","hentry","category-particle-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/167184","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/367"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=167184"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/167184\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=167184"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=167184"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=167184"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}