{"id":1516,"date":"2015-03-26T21:00:12","date_gmt":"2015-03-26T21:00:12","guid":{"rendered":"http:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/?p=1516"},"modified":"2022-04-13T15:57:45","modified_gmt":"2022-04-13T14:57:45","slug":"pythagorean-astronomy-eclipses-and-the-nature-of-gravity","status":"publish","type":"post","link":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/2015\/03\/26\/pythagorean-astronomy-eclipses-and-the-nature-of-gravity\/","title":{"rendered":"Pythagorean Astronomy: Eclipses and the nature of Gravity"},"content":{"rendered":"<p>In March 2015 there was an eclipse of the Sun.\u00a0Those who saw the total eclipse from the North Atlantic witnessed one of the most awesome sights\u00a0imaginable. From more southerly locations we saw a partial eclipse, and in Cardiff we were joined by over 1000 people on the steps of the National Museum of Wales.<\/p>\n<p>But eclipses aren&#8217;t just a pretty sight, and they can be used for scientific purposes. As well as showing us the outer atmosphere of the Sun, they\u00a0are also able to tell us about the fabric\u00a0of the Universe itself.\u00a0This month, I spoke to <a href=\"http:\/\/www.astro.cardiff.ac.uk\/contactsandpeople\/?page=full&amp;id=557\">Mark Hannam<\/a>, a researcher here in Cardiff, about what eclipses have taught us\u00a0about gravity, and what we&#8217;re still learning today. You can also read <a href=\"http:\/\/fictionalaether.blogspot.co.uk\/2015\/03\/the-eclipse-of-gravity.html\">Mark&#8217;s blog post<\/a> about some of the concepts involved.<\/p>\n<p><!--more--><\/p>\n<audio class=\"wp-audio-shortcode\" id=\"audio-1516-1\" preload=\"none\" style=\"width: 100%;\" controls=\"controls\"><source type=\"audio\/mpeg\" src=\"http:\/\/astrog80.astro.cf.ac.uk\/pythagoras-trousers\/mp3\/Mar2015_full_PHYSX.mp3?_=1\" \/><a href=\"http:\/\/astrog80.astro.cf.ac.uk\/pythagoras-trousers\/mp3\/Mar2015_full_PHYSX.mp3\">http:\/\/astrog80.astro.cf.ac.uk\/pythagoras-trousers\/mp3\/Mar2015_full_PHYSX.mp3<\/a><\/audio>\n<p>Originally broadcast (in edited form) on 26th March\u00a02015 as part of <a href=\"http:\/\/www.rhysphillips.co.uk\/pythagoras-trousers\/episode-207\/\">Pythagoras&#8217; Trousers<\/a> on <a href=\"http:\/\/www.radiocardiff.org\/\">Radio Cardiff<\/a>.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In March 2015 there was an eclipse of the Sun.\u00a0Those who saw the total eclipse from the North Atlantic witnessed one of the most awesome sights\u00a0imaginable. From more southerly locations we saw a partial eclipse, and in Cardiff we were joined by over 1000 people on the steps of the National Museum of Wales. But<\/p>\n","protected":false},"author":273,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[5,30,9,32],"tags":[],"class_list":["post-1516","post","type-post","status-publish","format-standard","hentry","category-astronomy-2","category-media","category-public","category-pythagorean-astronomy"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p4hmOz-os","jetpack_sharing_enabled":true,"meta_box":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/posts\/1516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/users\/273"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/comments?post=1516"}],"version-history":[{"count":2,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/posts\/1516\/revisions"}],"predecessor-version":[{"id":1570,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/posts\/1516\/revisions\/1570"}],"wp:attachment":[{"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/media?parent=1516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/categories?post=1516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/tags?post=1516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}