Abstract

Nicholas Callan (1799-1864) was an Irish priest and scientist who, although his name has been largely forgotten by historians, was a pioneer of electrical science. He invented the induction coil some fifteen years before Ruhmkorff, to whom credit is usually given. He developed some very practical batteries and also experimented with crude forms of electric lighting. Callan was also a very saintly man, donating a large part of his professor's salary for the relief of the poor. In the words of his obituary: 'His extraordinary piety, his perfect simplicity and unaffected candour endeared him to everyone who knew him'.