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In a popular eighteenth-century electrical experiment, a boy, suspended
by silk cords, draws a charge from a generator, transmitting it to a girl
standing
on dried pitch, allowing her to attract and repel chaff.
From: Sir William Watson, Recueil
de traités sur l'electricité, traduits
de l'Allemand & de l'Anglois
(Paris, 1748) – Science,
Industry
and Business Library, NYPL
image id: ps_sibl_cd30_505
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