{"version":"1.0","provider_name":"Physics &amp; Astronomy","provider_url":"https:\/\/uwm.edu\/physics","author_name":"Physics &amp; Astronomy","author_url":"https:\/\/uwm.edu\/physics","title":"CGCA Seminar: Sam Gralla","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"0FGdgxHmjy\"><a href=\"https:\/\/uwm.edu\/physics\/event\/cgca-seminar-sam-gralla\/\">CGCA Seminar: Sam Gralla<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/uwm.edu\/physics\/event\/cgca-seminar-sam-gralla\/embed\/#?secret=0FGdgxHmjy\" width=\"600\" height=\"338\" title=\"&#8220;CGCA Seminar: Sam Gralla&#8221; &#8212; Physics &amp; Astronomy\" data-secret=\"0FGdgxHmjy\" 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\/\/# sourceURL=https:\/\/uwm.edu\/physics\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"Sam Gralla, University of Arizona Spacetime Physics of Force Free Magnetospheres Physics \u2013 Room 481 The spectacular displays of pulsars and quasars are likely energized by rotating compact objects (neutron stars and black holes, respectively) through their plasma magnetospheres. When &hellip;"}