{"version":"1.0","provider_name":"TechEdu","provider_url":"https:\/\/techlib.net\/techedu","title":"Trackball - Definici\u00f3n y explicaci\u00f3n","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"oBkZOG6eMe\"><a href=\"https:\/\/techlib.net\/techedu\/trackball\/\">Trackball<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/techlib.net\/techedu\/trackball\/embed\/#?secret=oBkZOG6eMe\" width=\"600\" height=\"338\" title=\"\u00abTrackball\u00bb \u2014 TechEdu\" data-secret=\"oBkZOG6eMe\" 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:\/\/techlib.net\/techedu\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"Un trackball es un dispositivo para apuntar que consiste en una bola sostenida por un z\u00f3calo que contiene sensores para detectar la rotaci\u00f3n de la bola sobre dos ejes, como un rat\u00f3n invertido con una bola dentro. El usuario hace rodar la bola con el pulgar, el dedo o la palma de la mano, y ... Leer m\u00e1s"}