{"id":1975,"date":"2016-02-12T17:33:05","date_gmt":"2016-02-12T16:33:05","guid":{"rendered":"http:\/\/www.astrofili-vittorioveneto.it\/?p=1975"},"modified":"2016-02-12T17:39:46","modified_gmt":"2016-02-12T16:39:46","slug":"ma-che-cose-unonda-gravitazionale","status":"publish","type":"post","link":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/2016\/02\/ma-che-cose-unonda-gravitazionale\/","title":{"rendered":"Ma che cos&#8217;\u00e8 un&#8217;onda gravitazionale?"},"content":{"rendered":"<p>Da ieri, data della conferenza stampa con cui \u00e8 stata annunciata <a href=\"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/2016\/02\/osservate-per-la-prima-volta-le-onde-gravitazionali\/\">la prima misura di un&#8217;onda gravitazionale mai effettuata<\/a>, televisioni, giornali e internet sono invasi da notizie inerenti questa grande scoperta.<\/p>\n<p>Per cercare di comprendere questo complicato fenomeno fisico, vi consigliamo la lettura degli articoli pubblicati su <a href=\"http:\/\/www.media.inaf.it\/2016\/02\/11\/inside-gw\/\" target=\"_blank\">Media INAF<\/a> e la visione del video pubblicato su <a href=\"http:\/\/phdcomics.com\/comics.php\" target=\"_blank\">PhD Comics<\/a> (in inglese, con sottotitoli in italiano), linkato qui sotto:<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/4GbWfNHtHRg?rel=0\" width=\"640\" height=\"360\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>Sempre da PhD Comics, riportiamo un divertente fumetto con lo scopo di spiegare in maniera semplice il concetto di onda gravitazionale<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part1_ITA_600.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"1977\" data-permalink=\"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/2016\/02\/ma-che-cose-unonda-gravitazionale\/phd020116_part1_ita_600\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part1_ITA_600.jpg?fit=600%2C1800&amp;ssl=1\" data-orig-size=\"600,1800\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"phd020116_part1_ITA_600\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part1_ITA_600.jpg?fit=200%2C600&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part1_ITA_600.jpg?fit=400%2C1200&amp;ssl=1\" class=\" wp-image-1977 aligncenter\" src=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part1_ITA_600.jpg?resize=250%2C724&#038;ssl=1\" alt=\"phd020116_part1_ITA_600\" width=\"250\" height=\"724\" \/><\/a><a href=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part2_ITA_600.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"1978\" data-permalink=\"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/2016\/02\/ma-che-cose-unonda-gravitazionale\/phd020116_part2_ita_600\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part2_ITA_600.jpg?fit=600%2C1709&amp;ssl=1\" data-orig-size=\"600,1709\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"phd020116_part2_ITA_600\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part2_ITA_600.jpg?fit=211%2C600&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part2_ITA_600.jpg?fit=421%2C1200&amp;ssl=1\" class=\" wp-image-1978 aligncenter\" src=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part2_ITA_600.jpg?resize=252%2C694&#038;ssl=1\" alt=\"phd020116_part2_ITA_600\" width=\"252\" height=\"694\" \/><\/a><a href=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part3_ITA_600.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"1979\" data-permalink=\"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/2016\/02\/ma-che-cose-unonda-gravitazionale\/phd020116_part3_ita_600\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part3_ITA_600.jpg?fit=600%2C753&amp;ssl=1\" data-orig-size=\"600,753\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"phd020116_part3_ITA_600\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part3_ITA_600.jpg?fit=478%2C600&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part3_ITA_600.jpg?fit=600%2C753&amp;ssl=1\" class=\"size-medium wp-image-1979 aligncenter\" src=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part3_ITA_600.jpg?resize=478%2C600&#038;ssl=1\" alt=\"phd020116_part3_ITA_600\" width=\"478\" height=\"600\" srcset=\"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part3_ITA_600.jpg?resize=478%2C600&amp;ssl=1 478w, https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/phd020116_part3_ITA_600.jpg?w=600&amp;ssl=1 600w\" sizes=\"auto, (max-width: 478px) 100vw, 478px\" \/><\/a><\/p>\n<p>Sotto, invece, una simulazione di come apparirebbe la fusione tra buchi neri se osservata da molto vicino:<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/Zt8Z_uzG71o?rel=0\" width=\"640\" height=\"360\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>A fusione avvenuta si vede come lo spazio circostante ai buchi neri oscilli. La causa di questa oscillazione \u00e8 dovuta proprio al passaggio dell&#8217;onda gravitazionale che perturba lo spazio durante il suo passaggio.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Da ieri, data della conferenza stampa con cui \u00e8 stata annunciata la prima misura di un&#8217;onda gravitazionale mai effettuata, televisioni, giornali e internet sono invasi da notizie inerenti questa grande scoperta. Per cercare di comprendere questo complicato fenomeno fisico, vi consigliamo la lettura degli articoli pubblicati su Media INAF e &#8230;<\/p>\n","protected":false},"author":2,"featured_media":1976,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[51],"tags":[],"class_list":["post-1975","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-notizia","column","threecol","has-thumbnail"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.astrofili-vittorioveneto.it\/wp-content\/uploads\/2016\/02\/BlackHole_468x374.jpg?fit=468%2C374&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/posts\/1975","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/comments?post=1975"}],"version-history":[{"count":4,"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/posts\/1975\/revisions"}],"predecessor-version":[{"id":1983,"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/posts\/1975\/revisions\/1983"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/media\/1976"}],"wp:attachment":[{"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/media?parent=1975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/categories?post=1975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astrofili-vittorioveneto.it\/index.php\/wp-json\/wp\/v2\/tags?post=1975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}