The above description is the basic idea of what is going on with the Yagi-Uda antenna. Yagi antenna design is done most often via measurements, and sometimes computer simulations. For instance, let's look at a two-element Yagi antenna (1 reflector, 1 feed element, 0 directors).
Though there are no detailed records of when the sport of track and field began, experts say that track and field history can be traced back to 776 B.C. Track and Field History Experts say that track and field history can be traced back to 776 B.C when a cook named Koroibos, from Elis, won a race that was run over 600 feet distance. It is believed that this was the only athletic event for the initial 13 Olympic Games.
Welcome to the Hillclimb & Sprint Association and the sport of Speed Events. The origins of British Motor Sport began in the final year of the 19th century with a number of events described as 'hillclimbs' but a key event was to be a dash along public road and up a gentle hill at Bexhill-on-Sea in 1902.