Secret Life Of Machines - The Photo Copier (Full Length)

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James Watt, the inventor of the steam engine, patented the first copying machine, because of the disastrous inaccuracies that had occurred due to copying drawings by hand. Drawings to be copied were written in a special ink which bled into the copy when squashed through a mangle.

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Видео Secret Life Of Machines - The Photo Copier (Full Length) канала Carl Lewis