<?xml version="1.0"?> <oembed><version>1.0</version><provider_name>Digital Music News</provider_name><provider_url>https://www.digitalmusicnews.com</provider_url><author_name>Nina Ulloa</author_name><author_url>https://www.digitalmusicnews.com/author/nina-ulloa/</author_url><title>Hear The World's Longest Echo... - Digital Music News</title><type>rich</type><width>600</width><height>338</height><html>&lt;blockquote class="wp-embedded-content"&gt;&lt;a href="https://www.digitalmusicnews.com/2014/01/17/longecho/"&gt;Hear The World&#x2019;s Longest Echo&#x2026;&lt;/a&gt;&lt;/blockquote&gt;
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&lt;/script&gt;&lt;iframe sandbox="allow-scripts" security="restricted" src="https://www.digitalmusicnews.com/2014/01/17/longecho/embed/" width="600" height="338" title="&#x201C;Hear The World&#x2019;s Longest Echo&#x2026;&#x201D; &#x2014; Digital Music News" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"&gt;&lt;/iframe&gt;</html><description>interior of Inchindown&#xA0;oil tank In 1970, the Guinness Book of World Records listed the world&#x2019;s longest echo at 15 seconds long. &#xA0;That&#x2019;s pretty embarrassing compared to the new record of one minute and 12 seconds. Trevor Cox, Professor of Acoustic Engineering at the University of Salford, discovered the echo while researching for his book,&#xA0;Sonic Wonderland: [&hellip;]</description><thumbnail_url>https://www.digitalmusicnews.com/wp-content/uploads/2014/01/canmore_image_dp_06_DP069141.jpg</thumbnail_url></oembed>