Lina Beecher designed the first coaster with a loop, the Flip Flap railway located at Sea Lion Park at Coney Island. The two-passenger cars ran downhill before entering a vertical loop, which looked exactly the same as those used on coasters today. However, the high G forces experienced by the riders when travelling through the loop meant that they often blacked out or sustained whiplash injuries. Due to this, the public very quickly deserted the ride in droves, it closed soon after opening and vertical loops disappeared for over 90 years.
Despite the problems with loops, the public was still demanding bigger and better thrills from parks, as the scenic railways were being seen as old hat and too slow. This resulted in teams of designers, parks and ride manufacturers collaborating to provide the greatest rides that had been constructed up to that time. As all these teams competed with each other, the scenic railways got faster and faster, and began to resemble the modern wooden roller coaster more and more. This construction frenzy culminated in the building of over 2000 coasters in the 1920's. Many of these rides were so well made that they continue to thrill the public today. These include, among others, Roller Coaster (1912) and Big Dipper (1923) at Blackpool Pleasure Beach, England and in the USA the Giant Dipper (1925) at San Diego, California, the Thunderbolt (1924) at Kennywood Park, West Mifflin, Pennsylvania, and of course the Cyclone (1927) at Coney Island, New York.