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Society: IEEEMain Category: ElectricSub Category: EducationEra: 1830-1839DateCreated: 1836MaynoothCountry: IrelandWebsite: http://www.ieeeghn.org/wiki/index.php/Milestones:Callan%27s_Pioneering_Contributions_to_Electrical_Science_and_Technology,_1836
A pioneer in the development of electrical science, Nicholas Joseph Callan was born on 22 December 1799 in Darver, Ireland. He started the priesthood at Navan Seminary, and continued his studies at St. Patrick’s College Maynooth, where he studied natural and experimental philosophy under Dr. Cornelius Denvir. After his ordination as priest in 1823, Callan pursued his doctorate in divinity in Rome, where he became acquainted with Galvani and Volta’s work in the study of electricity, and recognized the potential to put it to practical and commercial use with powerful batteries.
Image Credit: Courtesy National University of IrelandImage Caption: Nicholas Joseph Callan made many discoveries during his lifetime; he was the first to establish the link between rate-of-change of current and electromagnetic induction, and discovered the principle of the self-exciting dynamo.Era_date_from: 1836
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