Nicholas Callan and experimental philosophy under Dr. Cornelius Denvir. He introduced the experimental method into his teaching, and had an interest in electricity and magnetism. Callan was ordained a priest in 1823 and went to Rome to study at Sapienza University, obtaining a doctorate in divinity in 1826. While in Rome he became acquainted with the work of the pioneers in electricity such as Luigi Galvani (1737–1798) who was a pioneer in modern obstetrics and Alessandro Volta (1745–1827) who is known especially for the development of the electric battery. In 1826, Callan returned to Maynooth as the new Professor of Natural Philosophy
Alessandro Nesta Alessandro Nesta Alessandro Nesta, (born 19 March 1976) is an Italian professional football manager and former player. He is currently the head coach of Perugia. Widely considered to be one of the best centre backs of his time and also as one of the greatest defenders ever, he was best known for his pace, artistic tackles, elegance on the ball, distribution and tight marking of opponents. He made over 400 Serie A appearances in a 20-year career spread between Lazio and Milan, winning domestic and European honours with both clubs as well as playing in Major League Soccer (MLS) for