<?xml version="1.0" encoding="UTF-8" standalone="yes"?><oembed><version><![CDATA[1.0]]></version><provider_name><![CDATA[Azimuth]]></provider_name><provider_url><![CDATA[https://johncarlosbaez.wordpress.com]]></provider_url><author_name><![CDATA[John Baez]]></author_name><author_url><![CDATA[https://johncarlosbaez.wordpress.com/author/johncarlosbaez/]]></author_url><title><![CDATA[Babylon and the Square Root of&nbsp;2]]></title><type><![CDATA[link]]></type><html><![CDATA[The Babylonians knew an amazingly good approximation to the square root of 2 back around 1700 BC.  But did they know it was just an approximation?  ]]></html><thumbnail_url><![CDATA[https://i1.wp.com/math.ucr.edu/home/baez/YBC7289.jpg?fit=440%2C330]]></thumbnail_url><thumbnail_height><![CDATA[330]]></thumbnail_height><thumbnail_width><![CDATA[345]]></thumbnail_width></oembed>