Galilean moons century when other inner moons were discovered, and Marius' names became widely used. Galileo was able to develop a method of determining longitude based on the timing of the orbits of the Galilean moons. The times of the eclipses of the moons could be precisely calculated in advance, and compared with local observations on land or on ship to determine the local time and hence longitude. The main problem with the technique was that it was difficult to observe the Galilean moons through a telescope on a moving ship; a problem that Galileo tried to solve with the invention of
Julio Conde death of his brothers Faustino y Mariano in the years 1988 and 1989, Julio, the only nephew successor, continued enlarging even more the figure of the high quality handmade guitar inside and outside our frontiers. At the present time, and from Julio's death in 1995, their sons and his granddaughter, in the same centre, continue the tradition Hermanos Conde, where the careful selection of materials and the quality of the final sound are maintained and continue as a high-priority goal. Julio Conde Julio Conde (Villalba de los Alcores, Valladolid, 1915 - Madrid, 1995) was a spanish luthier trained by his