Electrical apparatus (electrostatic machine), 18th century
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Photo courtesy of The Franklin Institute, Inc.

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Philadelphia
Walnut, glass, leather, suede, iron, and brass; H. 64.05 in. (162.7 cm), W. 22 3/4 in. (57.8 cm), D. 24 in. (61.0 cm)
Frankliniana Collection, The Franklin Institute, Inc. (Philadelphia, Pa.), 768
The creation of static electricity by means of a machine like this one was essential to the conducting of experiments and public demonstrations by Franklin and his Philadelphia colleague Ebenezer Kinnersley. Philip Syng, Jr., is sometimes credited with the basic design for the electrostatic machines: he worked with Franklin and Kinnersley in electrical experimentation.
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