{"version":"1.0","provider_name":"viaLog Logistik Beratung GmbH","provider_url":"https:\/\/vialog-logistik.com\/en\/","title":"The Seven Bridges of K\u00f6nigsberg | viaLog Logistik","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"GM3eGKG1cE\"><a href=\"https:\/\/vialog-logistik.com\/en\/smart-ways\/the-seven-bridges-of-koenigsberg\/\">The Seven Bridges of K\u00f6nigsberg<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/vialog-logistik.com\/en\/smart-ways\/the-seven-bridges-of-koenigsberg\/embed\/#?secret=GM3eGKG1cE\" width=\"600\" height=\"338\" title=\"&#8220;The Seven Bridges of K\u00f6nigsberg&#8221; &#8212; viaLog Logistik Beratung GmbH\" data-secret=\"GM3eGKG1cE\" 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:\/\/vialog-logistik.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"The seven bridges of K\u00f6nigsberg posed a mathematical problem, which was finally resolved by Leonhard Euler in the 18th century. His resolution laid the foundations of graph theory. Kneiphof island is part of the city of K\u00f6nigsberg. The river Pregel flows around the island and splits into two arms. Seven bridges cross the river and&hellip;","thumbnail_url":"https:\/\/vialog-logistik.com\/wp-content\/uploads\/euler-e1400573311514.jpg"}