Translations:WikiArS/Case studies/5/en

During the following academic year (2012-2013), Federica Brigida, an Erasmus student in the Bachelor's Degree in Advertising and Public Relations at the University of Cádiz, made a video about the salinity crisis by combining Pau's graphics with an animation created by Manolo Mantero and Daniel García-Castellanos (which also had a copyleft license). The video shows an animated recreation of some of the steps in the process. Text and visual indicators were added in order to draw the viewer's gaze to the areas where things are happening. Interspersed between Pau's drawings, Federica added video clips that show what happened underneath the earth's crust. The free licenses on the original materials allowed Federica to create a derivative work, also under the same type of license. This is a good example of how copyleft licenses regulate the creation of new works by combining multiple existing works by different authors. It also shows that Wikimedia Commons, a large repository of freely available files, is an ideal place to search for materials and share results.