Telecommunication Early means of communicating over a distance included visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs. Other examples of pre-modern long-distance communication included audio messages such as coded drumbeats, lung-blown horns, and loud whistles. 20th- and 21st-century technologies for long-distance communication usually involve electrical and electromagnetic technologies, such as telegraph, telephone, and teleprinter, networks, radio, microwave transmission, fiber optics, and communications satellites. A revolution in wireless communication began in the first decade of the 20th century with the pioneering developments in radio communications by Guglielmo Marconi, who won the Nobel Prize in Physics in
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