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.
electromagnetic brake
On trams an trains, an electromagnetic brake is a track brake where the braking element is pressed by magnetic force to the rail, i.e. the braking is by friction, not the magnetic effect directly.