Spark-gap transmitter capacitance and couldn't store much charge, limiting their power output. Therefore these devices were not capable of long distance transmission; their reception range with the primitive receivers employed was typically limited to roughly 100 yards (100 meters). Italian radio pioneer Guglielmo Marconi was one of the first people to believe that radio waves could be used for long distance communication, and singlehandedly developed the first practical radiotelegraphy transmitters and receivers, mainly by combining and tinkering with the inventions of others. Starting at age 21 on his family's estate in Italy, between 1894 and 1901 he conducted a long series of
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