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
Doug Hall (inventor) Doug Hall (inventor) Doug Hall is Founder & Chairman of Eureka! Ranch International. He is a lecturer, best-selling author, tv and radio host. Doug is a chemical engineer by education. He was Master Marketing Inventor at Procter & Gamble - shipping a record 9 products in 12 months. For his pioneering work turning innovation from an art into a science Doug was awarded a Doctor of Laws from the University of Prince Edward Island and a Doctor of Engineering from the University of Maine. Doug founded Eureka! Ranch in 1986. Originally designed as a "think tank for hire", the Ranch