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40.4 x 31.0 cm ⏐ 15.9 x 12.2 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Static electricity experiment. 19th-century illustration of the use of a device known as Volta's Electrophore. Also known as an electrophorus, this device consists of a dielectric material and a metal plate with an insulating handle. Turning the handle generates static electricity by friction. A spark is seen here, when the user places his hand near the device. This illustration, part of a section titled 'Experiences de Physique sans Appareils' (illustrating popular physics experiments that don't require the use of laboratory equipment), is from 'Physique Populaire' (Emile Desbeaux, 1891).
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