title: How Google Chrome knows my current GPS location and how to use it in my code?
body: <p>today i realize that some pages can locate me (im using a laptop with no gps built-in) using google chrome with a an very impresive exactitude, i know that using my IP you can locate me, but not with such presision. Now in <a href="http://maps.google.it/" rel="nofollow noreferrer">google maps</a> you will see a button on top of the yellow men (street view) who locates you using <strong>google chrome</strong>.</p>
  
  <p>How does this work? There is an <strong>API</strong> to use that?</p>