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.
doorbell
A oorbell is a signaling device commonly found near a door. It commonly emits a ringing sound. It was invented by Joseph Henry in 1831 .
Trivia about doorbell
Avon salesladies thank Joseph Henry, the first secretary of the Smithsonian, for inventing the electric this