1.0planet forward//www.getitdoneaz.comdale bowen//www.getitdoneaz.com/author/dalebowen/ rich600338<blockquote class="wp-embedded-content" data-secret="vkkuegbgvk"><a href="//www.getitdoneaz.com/story/high-efficiency-low-cost-ac-motors/">high efficiency, low cost ac motors</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="//www.getitdoneaz.com/story/high-efficiency-low-cost-ac-motors/embed/#?secret=vkkuegbgvk" width="600" height="338" title="“high efficiency, low cost ac motors” — planet forward" data-secret="vkkuegbgvk" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![cdata[ */ /*! this file is auto-generated */ !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); /* ]]> */ </script> motor technology has been around for 100 plus years and seems to be frozen in time! so now is the time to bring about some new technologies. ac motors use to be built utilizing copper bars and steel laminations in their rotors. this was very labor intensive, so the industry went to cast aluminum rotors...