{"id":307440,"date":"2016-11-02T03:00:00","date_gmt":"2016-11-02T00:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=f9b498f104a6f11b15415784a3dbe748"},"modified":"2016-11-02T03:00:00","modified_gmt":"2016-11-02T00:00:00","slug":"why-did-the-apple-fall-a-new-model-to-explain-einsteins-gravity","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=307440","title":{"rendered":"Why did the apple fall? A new model to explain Einstein\u2019s gravity"},"content":{"rendered":"<p>Newton described gravity as an attractive force between two masses but Einstein\u2019s General Theory of<br \/>\nRelativity provides a very different explanation. Implicit in Einstein\u2019s theory is the idea that<br \/>\ngravitational effects are the result of a distortion in the shape of space-time. Despite its<br \/>\nelegance, Einstein\u2019s concept of gravity is rarely encountered outside of an advanced physics course<br \/>\nas it is often considered to be too complex and too mathematical. This paper describes a new<br \/>\nconceptual and quantitative model of gravity based on General Relativity at a level most science<br \/>\nstudents should be able to understand. The model illustrates geodesics using analogies with paths of<br \/>\nnavigation on the surface of the Earth. This is extended to space and time maps incorporating the<br \/>\ntime warping effects of General Relativity. Using basic geometry, the geodesic path of a falling<br \/>\nobject near the surface of the Earth is found. From this the acceleration of an object in free fall<br \/>\nis calculated. Th&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Newton described gravity as an attractive force between two masses but Einstein\u2019s General Theory of<br \/>\nRelativity provides a very different explanation. Implicit in Einstein\u2019s theory is the idea that<br \/>\ngravitational effects are the result of a distort&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-307440","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/307440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=307440"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/307440\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=307440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=307440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=307440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}