{"id":27226,"date":"2020-12-18T04:48:30","date_gmt":"2020-12-18T09:48:30","guid":{"rendered":"https:\/\/blog.carlrobitaille.org\/?p=27226"},"modified":"2020-12-18T04:48:33","modified_gmt":"2020-12-18T09:48:33","slug":"cassini-proposed-that-the-orbits-follow-the-curve-with-r%e2%82%81r%e2%82%82c%c2%b2","status":"publish","type":"post","link":"https:\/\/blog.carlrobitaille.org\/?p=27226","title":{"rendered":"Cassini proposed that the orbits follow the curve with r\u2081r\u2082=c\u00b2"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">In 1678, Newton published in Principia a demonstration that the planets&#39; orbits are ellipses (r\u2081+r\u2082=c) with the Sun at one of the foci. 7 years earlier, Cassini proposed that the orbits follow the curve with r\u2081r\u2082=c\u00b2. <a href=\"https:\/\/t.co\/swl8fbdMbz\">pic.twitter.com\/swl8fbdMbz<\/a><\/p>&mdash; Fermat&#39;s Library (@fermatslibrary) <a href=\"https:\/\/twitter.com\/fermatslibrary\/status\/1339561782826962944?ref_src=twsrc%5Etfw\">December 17, 2020<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,9,19,29],"tags":[],"class_list":["post-27226","post","type-post","status-publish","format-standard","hentry","category-astronomie","category-histoire","category-mathematiques","category-physique"],"_links":{"self":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/27226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27226"}],"version-history":[{"count":1,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/27226\/revisions"}],"predecessor-version":[{"id":27227,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/27226\/revisions\/27227"}],"wp:attachment":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27226"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}