{"version":"1.0","provider_name":"book\u2777net Buchscanner","provider_url":"https:\/\/book2net.net\/de\/","author_name":"Karin","author_url":"https:\/\/book2net.net\/de\/author\/karin\/","title":"Lichtspektrum - book\u2777net Buchscanner","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"FvrP8OeQ90\"><a href=\"https:\/\/book2net.net\/de\/2022\/06\/20\/lichtspektrum\/\">Lichtspektrum<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/book2net.net\/de\/2022\/06\/20\/lichtspektrum\/embed\/#?secret=FvrP8OeQ90\" width=\"600\" height=\"338\" title=\"&#8222;Lichtspektrum&#8220; &#8211; book\u2777net Buchscanner\" data-secret=\"FvrP8OeQ90\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\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\/* ]]> *\/\n<\/script>\n","description":"Unter Lichtspektrum versteht man den sichtbaren Bereich des elektromagnetischen Spektrums, welcher vom Auge wahrgenommen werden kann. Der f\u00fcr den Menschen sichtbare Spektralbereich liegt zwischen 380 und 780 Nanometer, was einem Frequenzbereich von etwa 4\u00b71014 bis 7,5\u00b71014 Hz entspricht."}