If you have $50 million, this roller coaster that simulates…

Most roller coasters try to keep regurgitating riders to a minimum. But with this coaster by BRC Imagination Arts, queasy patrons may be inevitable. The design firm has taken a cue from NASA's KC-135A "Vomit Comet" aircraft and drafted plans for a coaster that mimics microgravity for up to nine seconds. The only… » 2/15/12 7:45am 2/15/12 7:45am