{"version":"1.0","provider_name":"\u5a01\u98a8 Ifu - Das authentische Katana","provider_url":"https:\/\/selected-japanese-swords.com\/ifu-de","author_name":"\u5a01\u98a8 Ifu","author_url":"https:\/\/selected-japanese-swords.com\/ifu-de\/author\/sjs\/","title":"Das Geheimnis der Sch\u00e4rfe des authentischen Katana - \u5a01\u98a8 Ifu - Das authentische Katana","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"EBl5kxrxI0\"><a href=\"https:\/\/selected-japanese-swords.com\/ifu-de\/sharpness-of-katana\/\">Das Geheimnis der Sch\u00e4rfe des authentischen Katana<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/selected-japanese-swords.com\/ifu-de\/sharpness-of-katana\/embed\/#?secret=EBl5kxrxI0\" width=\"600\" height=\"338\" title=\"&#8220;Das Geheimnis der Sch\u00e4rfe des authentischen Katana&#8221; &#8212; \u5a01\u98a8 Ifu - Das authentische Katana\" data-secret=\"EBl5kxrxI0\" 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\/\/# sourceURL=https:\/\/selected-japanese-swords.com\/ifu-de\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"Die meisten Menschen haben irgendwann in ihrem Leben eine Klinge benutzt, um etwas zu schneiden. Doch nur sehr wenige verstehen wirklich die physikalischen Prinzipien, die dem Schneiden mit einer Klinge zugrunde liegen. Dasselbe gilt f\u00fcr das Konzept der Sch\u00e4rfe. Wir sagen oft Dinge wie \u201eDieses K\u00fcchenmesser schneidet gut&#8221; oder \u201eDiese Schere schneidet nicht sauber&#8221;, aber [&hellip;]","thumbnail_url":"https:\/\/selected-japanese-swords.com\/ifu-de\/wp-content\/uploads\/2025\/07\/mistery-of-sharpness-1024x683.png","thumbnail_width":1024,"thumbnail_height":683}