1.0winguu ° fly high ° land gentlyhttps://www.winguu.com/elwinguuhttps://www.winguu.com/el/author/winguu/rich600338<blockquote class="wp-embedded-content" data-secret="Se6cajvGcR"><a href="https://www.winguu.com/el/thermals-the-scientific-lowdown/">Thermals: the scientific lowdown</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.winguu.com/el/thermals-the-scientific-lowdown/embed/#?secret=Se6cajvGcR" width="600" height="338" title="“Thermals: the scientific lowdown” — winguu ° fly high ° land gently" data-secret="Se6cajvGcR" 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); //# sourceURL=https://www.winguu.com/wp-includes/js/wp-embed.min.js /* ]]> */ </script> Thermals are the fuel of gliding flight, but there's more to them than just a load of hot air. Dr. Wayne Angevine from the National Oceanic and Atmospheric Administration explains. He likens thermals to fat trees, with small chaotic roots near the surface and large trunks above. Between the trees is sinking air. The trees tilt and sway […] ...read more