Galileo Galilei was born in Pisa (then part of the Duchy of Florence), Italy, on 15 February 1564, the first of six children of Vincenzo Galilei, a famous lutenist, composer, and music theorist, and Giulia (née Ammannati), who had married in 1562. Galileo became an accomplished lutenist himself and would have learned early from his father a scepticism for established authority, the value of well-measured or quantified experimentation, an appreciation for a periodic or musical measure of time or rhythm, as well as the results expected from a combination of mathematics and experiment. Three of Galileo's five siblings survived infancy. The youngest,
Italian submarine Galileo Galilei briefing between captains and the submarine command in Massawa before every mission. The claim was reported only to cover the British intelligence activities in Italian East Africa. After her capture, "Galileo Galilei" was berthed at Port Said and served as a generating station to charge the batteries of British submarines. She was commissioned into the Royal Navy in June 1942 as HMS "X2" (later changed to "P 711"), and was operated as a training boat in the East. She was scrapped on 1 January 1946. Italian submarine Galileo Galilei Galileo Galilei was an Italian "Archimede"-class submarine built for the Royal