{"id":28882,"date":"2016-08-13T03:54:02","date_gmt":"2016-08-13T10:54:02","guid":{"rendered":"http:\/\/lifeboat.com\/blog\/2016\/08\/researchers-demonstrate-acoustic-levitation-of-a-large-sphere"},"modified":"2017-06-04T14:25:38","modified_gmt":"2017-06-04T21:25:38","slug":"researchers-demonstrate-acoustic-levitation-of-a-large-sphere","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2016\/08\/researchers-demonstrate-acoustic-levitation-of-a-large-sphere","title":{"rendered":"Researchers demonstrate acoustic levitation of a large sphere"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/researchers-demonstrate-acoustic-levitation-of-a-large-sphere.jpg\"><\/a><\/p>\n<p>When placed in an acoustic field, small objects experience a net force that can be used to levitate the objects in air. In a new study, researchers have experimentally demonstrated the acoustic levitation of a 50-mm (2-inch) solid polystyrene sphere using ultrasound\u2014acoustic waves that are above the frequency of human hearing.<\/p>\n<p>The demonstration is one of the first times that an object larger than the wavelength of the acoustic wave has been acoustically levitated. Previously, this has been achieved only for a few specific cases, such as wire-like and planar objects. In the new study, the levitated sphere is 3.6 times larger than the 14-mm acoustic wavelength used here.<\/p>\n<p>The researchers, Marco Andrade and Julio Adamowski at the University of S\u00e3o Paulo in Brazil, along with Anne Bernassau at Heriot-Watt University in Edinburgh, UK, have published a paper on the <a href=\"http:\/\/phys.org\/tags\/acoustic+levitation\/\" rel=\"tag\" class=\"\">acoustic levitation<\/a> demonstration in a recent issue of <i>Applied Physics Letters<\/i>.<\/p>\n<p><!-- Link: <a href=\"http:\/\/phys.org\/news\/2016-08-acoustic-levitation-large-sphere.html\">http:\/\/phys.org\/news\/2016&#45;08-acoustic-levitation-large-sphere.html<\/a> --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When placed in an acoustic field, small objects experience a net force that can be used to levitate the objects in air. In a new study, researchers have experimentally demonstrated the acoustic levitation of a 50-mm (2-inch) solid polystyrene sphere using ultrasound\u2014acoustic waves that are above the frequency of human hearing. The demonstration is one [\u2026]<\/p>\n","protected":false},"author":367,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-28882","post","type-post","status-publish","format-standard","hentry","category-futurism"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/28882","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=28882"}],"version-history":[{"count":2,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/28882\/revisions"}],"predecessor-version":[{"id":66601,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/28882\/revisions\/66601"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=28882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=28882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=28882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}