B. S. Jacobi’s Works in the Field of Electric Telegraphy: Results and Comparative Analysis of Their Novelty

 
PIIS020596060009438-3-1
DOI10.31857/S020596060009438-3
Publication type Article
Status Published
Authors
Affiliation: A. S. Popov Central Museum of Communications
Address: St. Petersburg, Pochtamtsky per., 4
Journal nameVoprosy istorii estestvoznaniia i tekhniki
EditionVolume 41 2
Pages311-333
AbstractB. S. Jacobi’s fundamental works in the field of electrical machines, electroplating, metrology, and platinum metallurgy made him known to the world; however, his applied works in the area of electric telegraphy (development of telegraphs, construction of telegraph lines) failed to win the same recognition. These works had been classified as secret by Emperor Nicholas I because of the similarity of technical solutions used in these devices and technologies to those used in electric minelaying, practiced by the Russian Army. This paper offers a scientifically grounded assessment of novelty of Jacobi’s inventions, and analyzes the factors that impacted on their effectiveness. When comparing Jacobi’s works with their international counterparts, the patenting date or the date of informing scientific community about a respective innovation was used as comparison parameter. Eight inventions and technologies, common for Jacobi and international engineers, were selected as objects for comparison: electromagnetic recording telegraph, electrochemical telegraph, type-printing telegraph, synchronous pointer telegraph, underground laying of telegraph conductors, the use of earth as return telegraph wire, the principle of retransmission on long-distance lines, and counter-battery. This study established Jacobi’s global priority in the further development of six of these eight inventions and technologies although at the stage of their practical implementation only. Inventing devices by himself and tackling the problems with telegraph lines in Russia, Jacobi had not been the first globally at the stages of their invention, mass production, and spread. Despite censorial restrictions, Jacobi’s theoretical inferences (as opposed to his practical results) became known to international scientists and helped to tackle the problems in telegraph construction internationally.
KeywordsB. S. Jacobi, S. Morse, electric telegraphy, history of telegraphy, practical application of telegraphic devices, A. S. Popov Central Museum of Communications
Received16.06.2020
Publication date20.06.2020
Number of characters54843
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