This is an archived article that was published on sltrib.com in 2014, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.
Since 1970, every World Cup football has been made by Adidas and the two most recent balls used, in 2010 and 2006, drew criticism for behaving like a beach ball while in flight. A lot of science and a new design may have fixed the problem, or created others.