<?xml version="1.0"?>
<oembed><version>1.0</version><provider_name>Uitgeverij Van Oorschot</provider_name><provider_url>https://www.vanoorschot.nl/en/</provider_url><author_name>Machiel Jansen</author_name><author_url>https://www.vanoorschot.nl/en/author/machiel-jansen/</author_url><title>Zwevend beton &#xB7; Uitgeverij Van Oorschot</title><type>rich</type><width>600</width><height>338</height><html>&lt;blockquote class="wp-embedded-content" data-secret="juqRu9ATIw"&gt;&lt;a href="https://www.vanoorschot.nl/en/tirade_blog/27903/"&gt;Zwevend beton&lt;/a&gt;&lt;/blockquote&gt;&lt;iframe sandbox="allow-scripts" security="restricted" src="https://www.vanoorschot.nl/en/tirade_blog/27903/embed/#?secret=juqRu9ATIw" width="600" height="338" title="&#x201C;Zwevend beton&#x201D; &#x2014; Uitgeverij Van Oorschot" data-secret="juqRu9ATIw" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"&gt;&lt;/iframe&gt;&lt;script type="text/javascript"&gt;
/* &lt;![CDATA[ */
/*! This file is auto-generated */
!function(d,l){"use strict";l.querySelector&amp;&amp;d.addEventListener&amp;&amp;"undefined"!=typeof URL&amp;&amp;(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&amp;&amp;!/[^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&lt;o.length;i++)o[i].style.display="none";for(i=0;i&lt;a.length;i++)s=a[i],e.source===s.contentWindow&amp;&amp;(s.removeAttribute("style"),"height"===t.message?(1e3&lt;(r=parseInt(t.value,10))?r=1e3:~~r&lt;200&amp;&amp;(r=200),s.height=r):"link"===t.message&amp;&amp;(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&amp;&amp;n.host===r.host&amp;&amp;l.activeElement===s&amp;&amp;(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&lt;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);
//# sourceURL=https://www.vanoorschot.nl/wp-includes/js/wp-embed.min.js
/* ]]&gt; */
&lt;/script&gt;
</html><thumbnail_url>https://www.vanoorschot.nl/wp-content/uploads/2018/07/machiel-1.jpg</thumbnail_url><thumbnail_width>848</thumbnail_width><thumbnail_height>810</thumbnail_height><description>Jacq en ik zagen afgelopen week hoe Studio Drift in het Stedelijk Museum een betonblok laat zweven. Deze illusie wordt met geheimzinnigheid in stand gehouden. Een uitleg van hoe het blok blijft zweven kwam ik op Internet niet tegen. Zo vreemd is dat niet. Het kunstwerk begint pas op je in te werken wanneer je...</description></oembed>

<!--
Performance optimized by W3 Total Cache. Learn more: https://www.boldgrid.com/w3-total-cache/

Page Caching using Disk: Enhanced (Requested URI contains query) 
Database Caching 49/139 queries in 0.363 seconds using Disk

Served from: www.vanoorschot.nl @ 2026-08-25 16:51:17 by W3 Total Cache
-->