{"id":26302,"date":"2016-06-01T05:49:21","date_gmt":"2016-06-01T12:49:21","guid":{"rendered":"http:\/\/lifeboat.com\/blog\/2016\/06\/physicists-make-first-observation-of-the-pushing-pressure-of-light"},"modified":"2017-04-24T20:41:35","modified_gmt":"2017-04-25T03:41:35","slug":"physicists-make-first-observation-of-the-pushing-pressure-of-light","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2016\/06\/physicists-make-first-observation-of-the-pushing-pressure-of-light","title":{"rendered":"Physicists make first observation of the pushing pressure of light"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/physicists-make-first-observation-of-the-pushing-pressure-of-light.jpg\"><\/a><\/p>\n<p>(<i>Phys.org<\/i>)\u2014For more than 100 years, scientists have debated the question: when light travels through a medium such as oil or water, does it pull or push on the medium? While most experiments have found that light exerts a pulling pressure, in a new paper physicists have, for the first time, found evidence that light exerts a pushing pressure.<\/p>\n<p>The scientists suggest that this apparent contradiction is not a fundamental one, but can be explained by the interplay between the light and the fluid medium: if the light can put the fluid in motion, it exerts a pushing force; if not, it exerts a pulling force.<\/p>\n<p>The researchers, Li Zhang, Weilong She, and Nan Peng at Sun Yat-Sen University in Guangzhou, China, and Ulf Leonhardt at the Weizmann Institute of Science in Rehovot, Israel, have published a paper on the first evidence for the pushing <a href=\"http:\/\/phys.org\/tags\/pressure\/\" rel=\"tag\" class=\"\">pressure<\/a> of light in a recent issue of the <i>New Journal of Physics<\/i>.<\/p>\n<p><!-- Link: <a href=\"http:\/\/m.phys.org\/news\/2015-06-physicists-pressure.html\">http:\/\/m.phys.org\/news\/2015&#45;06-physicists-pressure.html<\/a> --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>(Phys.org)\u2014For more than 100 years, scientists have debated the question: when light travels through a medium such as oil or water, does it pull or push on the medium? While most experiments have found that light exerts a pulling pressure, in a new paper physicists have, for the first time, found evidence that light exerts [\u2026]<\/p>\n","protected":false},"author":367,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[219],"tags":[],"class_list":["post-26302","post","type-post","status-publish","format-standard","hentry","category-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/26302","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=26302"}],"version-history":[{"count":2,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/26302\/revisions"}],"predecessor-version":[{"id":50336,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/26302\/revisions\/50336"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=26302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=26302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=26302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}