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.
valve stem
A valve stem is the port on a wheel that allows the tire to be pressurize. They are typically spring-loaded devices that admit air when the external pressure is greater than the internal tire pressure to allow filling.