1.0Sabias Quehttps://www.sabiasque.netSabiasquehttps://www.sabiasque.net/author/r9z27j6baw6bpfdp5j/Las pirámides Snofru, Cheops, Dedefré y Kefrén - Sabias Querich600338<blockquote class="wp-embedded-content" data-secret="32NyqILgII"><a href="https://www.sabiasque.net/las-piramides-snofru-cheops-dedefre-y-kefren/">Las pirámides Snofru, Cheops, Dedefré y Kefrén</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.sabiasque.net/las-piramides-snofru-cheops-dedefre-y-kefren/embed/#?secret=32NyqILgII" width="600" height="338" title="«Las pirámides Snofru, Cheops, Dedefré y Kefrén» — Sabias Que" data-secret="32NyqILgII" 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); </script> Se calcula que en los 80 años de construcción de las pirámides Snofru, Cheops, Dedefré y Kefrén, los egipcios usaron 8.974.000 m3 de material, cada día colocaban 431 bloques de piedra, en jornadas de 12 horas, se ponían 36 bloques por hora, es decir, 1.6 bloques por minuto.