{"version":"1.0","provider_name":"Dom\u016f","provider_url":"https:\/\/www.ig.cas.cz\/en\/","author_name":"Miroslava Mach\u00e1\u010dkov\u00e1","author_url":"https:\/\/www.ig.cas.cz\/en\/author\/m-machackovaig-cas-cz\/","title":"Prague Observatory Yearbooks 1839 - 1917 - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"JlRlQqvR5P\"><a href=\"https:\/\/www.ig.cas.cz\/en\/prague-observatory-yearbooks\/\">Prague Observatory Yearbooks 1839 &#8211; 1917<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.ig.cas.cz\/en\/prague-observatory-yearbooks\/embed\/#?secret=JlRlQqvR5P\" width=\"600\" height=\"338\" title=\"&#8220;Prague Observatory Yearbooks 1839 &#8211; 1917&#8221; &#8212; Dom\u016f\" data-secret=\"JlRlQqvR5P\" 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":"[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.6.0&#8243; _module_preset=&#8221;default&#8221;][et_pb_row _builder_version=&#8221;4.6.0&#8243; _module_preset=&#8221;default&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.6.0&#8243; _module_preset=&#8221;default&#8221;][et_pb_text _builder_version=&#8221;4.6.0&#8243; _module_preset=&#8221;default&#8221;] Publication of yearbooks Magnetische und meteorologische Beobachtungen zu Prag was started by Karl Kreil in 1839 and continued by his successors until 1917. The yearbooks contain tables of variation observations (magnetic and meteorological), reports on absolute magnetic measurements and discussion to their conversion to [&hellip;]"}