It never makes a request to server after loading. It's not real time and it repeats the same queries again after some time. This is just a good looking design, nothing more.
Mary Lou from Codrops has a neat tutorial about making a similar grid layout: <a href="http://tympanus.net/codrops/2013/06/19/dynamic-grid-with-transitions/" rel="nofollow">http://tympanus.net/codrops/2013/06/19/dynamic-grid-with-tra...</a>
I thought everyone had seen this 6 months ago when it made the rounds.<p>This isn't updating in realtime, the typing is faked, they filter results, and the results are based on a ranking system that favors change from the previous day, not most search, and it downranks things that have trended in the past.<p>Basically this is just a pretty demo page that uses visuals to look more impressive than it is. It is still just google.com/trends in a harder to read wrapper that makes a better screen saver.
They did the same thing at the 2000 Atlanta Linux Showcase.<p><a href="http://webonastick.com/photos/als2000/mvc-600s.jpg" rel="nofollow">http://webonastick.com/photos/als2000/mvc-600s.jpg</a>