{"id":108460,"date":"2020-06-09T18:09:49","date_gmt":"2020-06-10T01:09:49","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2020\/06\/no-the-laws-of-physics-are-not-the-same-forwards-and-backwards-in-time"},"modified":"2020-06-09T18:46:11","modified_gmt":"2020-06-10T01:46:11","slug":"no-the-laws-of-physics-are-not-the-same-forwards-and-backwards-in-time","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2020\/06\/no-the-laws-of-physics-are-not-the-same-forwards-and-backwards-in-time","title":{"rendered":"No, The Laws Of Physics Are Not The Same Forwards And Backwards In Time"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/no-the-laws-of-physics-are-not-the-same-forwards-and-backwards-in-time2.jpg\"><\/a><\/p>\n<p>This corresponds to a certain symmetry of nature: <a aria-label=\"T-symmetry\" href=\"https:\/\/en.wikipedia.org\/wiki\/T-symmetry\" rel=\"nofollow noopener\" target=\"_blank\"><em>T<\/em>-symmetry<\/a>, or time-reversal invariance. Our everyday experience indicates to us, quite strongly, that the laws of physics must violate this symmetry, but for decades, we couldn\u2019t demonstrate it. But a few years ago, <a aria-label=\"we experimentally proved the laws of physics are different\" href=\"https:\/\/www6.slac.stanford.edu\/news\/2012-11-19-babar-trv.aspx\" rel=\"nofollow noopener\" target=\"_blank\">we experimentally proved the laws of physics are different<\/a> depending on which direction time runs. Here\u2019s how we know.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This corresponds to a certain symmetry of nature: T-symmetry, or time-reversal invariance. Our everyday experience indicates to us, quite strongly, that the laws of physics must violate this symmetry, but for decades, we couldn\u2019t demonstrate it. But a few years ago, we experimentally proved the laws of physics are different depending on which direction time [\u2026]<\/p>\n","protected":false},"author":396,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[219],"tags":[],"class_list":["post-108460","post","type-post","status-publish","format-standard","hentry","category-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/108460","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\/396"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=108460"}],"version-history":[{"count":1,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/108460\/revisions"}],"predecessor-version":[{"id":108466,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/108460\/revisions\/108466"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=108460"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=108460"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=108460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}