Parabolic antenna be exploited. Italian radio pioneer Guglielmo Marconi used a parabolic reflector during the 1930s in investigations of UHF transmission from his boat in the Mediterranean. In 1931 a 1.7 GHz microwave relay telephone link across the English Channel using 10 ft. (3 meter) diameter dishes was demonstrated. The first large parabolic antenna, a 9 m dish, was built in 1937 by pioneering radio astronomer Grote Reber in his backyard, and the sky survey he did with it was one of the events that founded the field of radio astronomy. The development of radar during World War II provided a great
Gloria Marconi Gloria Marconi Gloria Marconi (born 31 March 1968) is an Italian long-distance runner. She was born in Florence. On the track she finished fifth in the 5000 metres and 24th in the 10,000 metres at the 2002 European Championships. She became Italian 5000 metres champion in 2002 and 2004, and 10,000 metres champion in 2003 and 2006. She became indoor 3000 metres champion in 2002. Her personal best times were 4:25.85 minutes in the 1500 metres, achieved in 1998; 9:04.80 minutes in the 3000 metres, achieved in July 2004 in Ferrara; 10:27.72 minutes in the 3000 metres steeplechase, achieved in