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.
Track began (Men and Women) at Tuskegee in 1916. The first Tuskegee Relays and Meet was held on May 7, 1927; it was the oldest African American relay meet. Tuskegee's Alice Coachman was the first African American woman to win an Olympic gold medal in any sport, at the 1948 Olympic Games in London. Iram Lewis, a Tuskegee graduate of architecture, is an Olympian relay runner who competed for the Bahamas.