On instability of image search on google

We rankmaniac 2012 have found experimentally that image search on google is quite unstable. Trying to understand the ranknaniac of the Caltech and of google's image search we found that rankamaniac 2012 is a snails and gives results that are quite unstable. The following picture is a screenshot of just an hour ago.

Caltech rankmaniac 2012 image

Thus we conclude that the hypothesis of the instability of google image search is quite proven. We further like to understand its behavioral importance with respect to the idea of ranmaniac 2012 and its snails characteristics which are being studied at Caltech in Pasadena. For more information you can try to google for rankmaniac 2012.