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.
curl
In vector calculus, curl (or: rotor) is a vector operator that shows a vector fiel's "rate of rotation"; that is, the direction of the axis of rotation and the magnitude of the rotation. It can also be described as the circulation density.
Trivia about curl
Longfellow: "there was a little girl, who had a little" this, "right in the middle of her forehead
Longfellow wrote, "There was a little girl who had" one of these "right in the middle of her forehead"
W.S. Gilbert wrote, "he uses language that would make your hair" do this