Flipper (cricket) Flipper (cricket) The flipper is the name of a particular bowling delivery used in cricket, generally by a leg spin bowler. In essence it is a back spin ball. Squeezed out of the front of the hand with the thumb and first and second fingers, it keeps deceptively low after pitching and can accordingly be very difficult to play. The flipper is comparable to a riseball in fast-pitch softball. By putting backspin on the ball the Magnus effect results in air travelling over the top of the ball quickly and cleanly whilst air travelling under the ball is turbulent. The
Beamer (LaTeX) having a single source file for an article and the slides for the talk about this article. Beamer depends on PGF for some of its features. Beamer (LaTeX) Beamer is a LaTeX document class for creating slides for presentations. It supports both pdfLaTeX and LaTeX + dvips. The name is taken from the German word ""Beamer"" as a pseudo-anglicism for "video projector". The Beamer class is not the first LaTeX class for creating presentations, and like many of its predecessors, it has special syntax for defining "slides" (known in Beamer as "frames"). Slides can be built up on-screen in stages