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Title: Early type of electrical machine [Go to resource]
Description: Early type of electrical machine, consisting of a 7.5 in. globe, interior coated with sealing wax, turned by means of a wooden wheel with crank handle. Fixed on a chest with drawers containing various License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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