Here is search logs of 650,000 AOL users. It's very interesting to view search history of particular person and analyze his personality. Let's do it together! Read more about AOL search database scandal or view research papers on web searching.
vortex tube
The vortex tube, also known as the Ranque-Hilsch vortex tube, is a mechanical evice that separates a compressed gas into hot and cold streams. It has no moving parts.