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## Video  Video as an exploratory and explanatory visualization mode for scientific data has come of age. Many scientific talks today include some short video, explaining a concept that is better explained with moving images than with static figures. Some journals even publish nearly exclusively video, in fields where it is so instuctive instructive  on its own that less accompanying material is needed. For example, [JoVE](http://jove.com), the Journal of Visualized Experiments, began in 2006 as the world's first peer reviewed scientific video journal. Including video, like audio, is a challenge in standard journals, even when online, due to the plethora of video (and audio) file formats that potentially need supporting. It is a value-added service of a publisher to advertise which formats are acceptable, and to then migrate those formats in the future so that multimedia content continues to be accessible. Even the modern _de-facto_ standard paper format, PDF, fully supports audio and video. Both can be included using only LaTeX packages and require no special technology. Videos can present sequential figures, true movies of time-variable phenomena, movies of simulated phenomena in time, or even commentary from authors.