1.0Kotsanas Museumhttp://collection.kotsanasmuseum.com/en/rich600338<blockquote class="wp-embedded-content" data-secret="0K0RSbjCRH"><a href="http://collection.kotsanasmuseum.com/en/exhibits/106053/">The repeating (“polybolos”) catapult of Dionysius of Alexandria (3rd c. B.C.)</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="http://collection.kotsanasmuseum.com/en/exhibits/106053/embed/#?secret=0K0RSbjCRH" width="600" height="338" title="“The repeating (“polybolos”) catapult of Dionysius of Alexandria (3rd c. B.C.)” — Kotsanas Museum" data-secret="0K0RSbjCRH" 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=http://collection.kotsanasmuseum.com/wp-includes/js/wp-embed.min.js </script> https://collection.kotsanasmuseum.com/wp-content/uploads/extra_large/8308.jpg10241024“It was a repeating straight-spring catapult that had the possibility of automatically launching arrows in succession and constituted the leading achievement of ancient Greek catapult engineering. The catapult was constructed for the Rhodians. It was equipped with a turning roller that had two grooves (one lengthwise and one helical) and a wooden case that held […]