25.0 MB (7.3 MB compressed)
2478 x 3526 pixels
21.1 x 30.0 cm ⏐ 8.3 x 11.8 in (300dpi)
UNIVERSAL HISTORY ARCHIVE / UIG / SCIENCE PHOTO LIBRARY UNIVERSAL HISTORY ARCHIVE / UIG / SCIENCE PHOTO LIBRARY
Stephen Gray (1666-1736) English scientist born at Canterbury, Kent, credited with the discovery of the flow of electricity. Artist's impression of Gray passing electricity from a glass globe electrostatic machine down a 44.8 meter (147 feet) length of packthread (1729). Engraving from A Popular History of Science by Robert Routledge (London, 1881).
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