{"version":"1.0","provider_name":"Festival Znanosti, Rijeka 2024","provider_url":"https:\/\/festivalznanosti.uniri.hr\/2024","author_name":"Festival","author_url":"https:\/\/festivalznanosti.uniri.hr\/2024\/author\/festival\/","title":"Od abakusa do superra\u010dunala - Festival Znanosti, Rijeka 2024","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"b3OW1KPBHK\"><a href=\"https:\/\/festivalznanosti.uniri.hr\/2024\/od-abakusa-do-superracunala\/\">Od abakusa do superra\u010dunala<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/festivalznanosti.uniri.hr\/2024\/od-abakusa-do-superracunala\/embed\/#?secret=b3OW1KPBHK\" width=\"600\" height=\"338\" title=\"&#8220;Od abakusa do superra\u010dunala&#8221; &#8212; Festival Znanosti, Rijeka 2024\" data-secret=\"b3OW1KPBHK\" 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<\/script>\n","description":"Jedan od najstarijih brojevnih sustava s bazom 10 razvili su Egip\u0107ani prije vi\u0161e od 7000 godina. Pozicijski dekadski brojevni sustav koji se koristi i danas nastaje u Indiji, a u Europu ga donose Arapi u 9. stolje\u0107u. Za razvoj je digitalnih ra\u010dunala od posebnog zna\u010daja binarni brojevni sustav s bazom 2. Abak (lat. abacus) jedno je od prvih pomagala za ra\u010dunanje, a po\u010deo se koristiti u Babiloniji prije vi\u0161e od 2400 p. n. e. Znatno naprednije pomagalo za ra\u010dunanje \u2013logaritamsko ra\u010dunalo (\u0161iber) \u2013 pojavljuje se nakon otkri\u0107a logaritama u 17. stolje\u0107u i u uporabi je do pojave elektroni\u010dkih kalkulatora u"}