How is the propulsion system different from the California Screamin' launched roller coaster? http://www.nytimes.com/2001/08/30/technology/how-it-works-the-lat

How is the propulsion system different from the California Screamin' launched roller coaster? http://www.nytimes.com/2001/08/30/technology/how-it-works-the-latest-at-the-theme-park-a-magnetic-attraction.html http://www.nytimes.com/2001/08/30/technology/how-it-works-th...