La macchinetta di Pacinotti

This video is a "second installment" of the video "The Electric Motor." This video also presents experiments on electric current and electromagnetism. A computer cooling fan can be considered a "Pacinotti machine," that is, a device that operates on direct current: either as an electric motor (receiving electricity and generating movement) or as a dynamo (receiving movement and generating electricity). In the video you can find: from min 0:12 onwards, Pacinotti's machine, introduction and history from min 1:12 onwards, the fan as a motor and generator from min 1:57 onwards, experiment: fan - electric motor from min 3:37 onwards, experiment: fan - dynamo from min 5:09 onwards, analogy with a bicycle wheel and "electric current chain" from min 5:40 onwards, LED lighting from min 6:08 onwards, the broken fan and its various parts from min 7:52 onwards, analogy between electrical wires and straws from min 12:14 onwards, electrical resistance from min 13:09 onwards, the Genecon as Pacinotti's machine from min 14:13 onwards, the Genecon to illustrate electricity from min 15:09 onwards, power plants from min 15:40 onwards, experiments with two Genecons to illustrate resistance Electric Video produced by Reinventore with the support of the Ministry of Education, University and Research (MIUR). Find related factsheets, in-depth information, and free teaching materials at http://www.reinventore.it. TEXTS AND FACTSHEETS http://www.reinventore.it/sala-profes... VIDEO http://www.reinventore.it/reinventore... GENECON DUE http://www.reinventore.it/shop/it/gen... GENECON V3 http://www.reinventore.it/shop/it/gen...