Lynn Korwatch located on top of Telegraph Hill. George F. Sweeney and Theodore F. Baugh were the two individuals to present the idea of a wooden semaphore on top of Telegraph Hill. A semaphore is a system in which one uses two flags or poles and sends signals in an alphabetic code. Sweeney and Baugh expanded their system by placing a signal station on Point Lobos, which is located 20–30 miles from port in San Francisco. The reasoning behind this was that there was high demand from people wanting to know when the ships were arriving at an earlier time so that
The Joker (Six Flags México) The Joker (Six Flags México) The Joker is a spinning roller coaster located at Six Flags México, a theme park in Mexico. The ride was designed by Gerstlauer and Werner Stengel. The Joker opened for the public on March 7, 2013. The Joker's design consists of several cars holding four riders each. While the cars traverse the track, they spin around according to the angle of the track and the shifts in the riders' weight. In 2007, Six Flags built "Tony Hawk's Big Spin", a spinning coaster, at both Six Flags Fiesta Texas and Six Flags St. Louis. After both