{"version":"1.0","provider_name":"Basilica di San Petronio","provider_url":"https:\/\/www.basilicadisanpetronio.org\/en\/","author_name":"riccardoarmari","author_url":"https:\/\/www.basilicadisanpetronio.org\/en\/news\/author\/riccardoarmari\/","title":"Cassini's Meridian Line | Basilica di San Petronio","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"xrzUT5JteH\"><a href=\"https:\/\/www.basilicadisanpetronio.org\/en\/cassini-meridian-line\/\">Cassini&#8217;s Meridian Line<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.basilicadisanpetronio.org\/en\/cassini-meridian-line\/embed\/#?secret=xrzUT5JteH\" width=\"600\" height=\"338\" title=\"&#8220;Cassini&#8217;s Meridian Line&#8221; &#8212; Basilica di San Petronio\" data-secret=\"xrzUT5JteH\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.basilicadisanpetronio.org\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.basilicadisanpetronio.org\/wp-content\/uploads\/2026\/10\/bsp-meridiana.jpg","thumbnail_width":2560,"thumbnail_height":1159,"description":"The video explores the great pinhole meridian line created by Gian Domenico Cassini in 1655 inside the Basilica of San Petronio in Bologna, one of the most remarkable astronomical instruments of the early modern period. The film was produced within Ferrara delle Scienze 2026 \u2013 Il Cielo, a Public Engagement project of the University of [&hellip;]"}