1.0Cagliari FestivalScienzahttps://festivalscienzacagliari.it/en/rich600338<blockquote class="wp-embedded-content" data-secret="caKcKk5tCk"><a href="https://festivalscienzacagliari.it/en/eventi_festival/the-mirror-of-time/">The mirror of time</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://festivalscienzacagliari.it/en/eventi_festival/the-mirror-of-time/embed/#?secret=caKcKk5tCk" width="600" height="338" title="“The mirror of time” — Cagliari FestivalScienza" data-secret="caKcKk5tCk" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !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); //# sourceURL=https://festivalscienzacagliari.it/wp-includes/js/wp-embed.min.js </script> https://festivalscienzacagliari.it/wp-content/uploads/2025/10/eventi-2025_18-600x750.jpg600750The mirror is fascinating for its ability to duplicate things, people, ourselves. But what exactly does a mirror do, and why does it reverse left and right but not up and down? Would we be able to explain to an extraterrestrial civilization what we mean by left and right? Associated with the concept of the […]