Caselli's pantelegraph of 1865, (c1870). Invented by the Italian Giovanni Caselli (1815-1891), this precursor of the Fax machine was used on some French railway lines from 1865-1870. At the sending station the dispatch was written or drawn on a sheet of metallized paper in thick insulating ink and placed on a curved plate. At the receiving station a sheet of paper impregnated with potassium ferrocyanide was placed on a plate and a stylus produced an image on the impregnated paper. From Les Merveilles de la Science (The Wonders of Science) by Louis Figuier. (Paris, c1870). (Photo by Oxford Science Archive/Print Collector/Getty Images)
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January 28th, 2021
Viewed 76 Times - Last Visitor from Cupertino, CA on 07/22/2021 at 3:38 AM