{"version":"1.0","provider_name":"Random Thoughts","provider_url":"https:\/\/dionaea.com\/blog","author_name":"Svein K\u00e5re","author_url":"https:\/\/dionaea.com\/blog\/archives\/author\/svein-kare\/","title":"Optical Illusions - Random Thoughts","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"9oI0uDbuqb\"><a href=\"https:\/\/dionaea.com\/blog\/archives\/2020\/05\/01\/optical-illusions\/\">Optical Illusions<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/dionaea.com\/blog\/archives\/2020\/05\/01\/optical-illusions\/embed\/#?secret=9oI0uDbuqb\" width=\"600\" height=\"338\" title=\"&#8220;Optical Illusions&#8221; &#8212; Random Thoughts\" data-secret=\"9oI0uDbuqb\" 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:\/\/dionaea.com\/blog\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"I guess we all have seen various optical illusions; drawings that can be seen as two different things at the same time, images where the shapes also seem to hide or form other figures, geometrical constructs where the angles seem to be OK, but at the same time are completely impossible. One well-known artist of &hellip; Continue reading \"\"","thumbnail_url":"https:\/\/dionaea.com\/blog\/images\/waterfall-Large.jpg"}