University of Michigan unveils 1,500-pound Rubik's Cube

University of Michigan mechanical engineering students have made one of the most popular puzzle games much larger. And tougher to solve.Seven former and current students unveiled a 1,500-pound Rubik's Cube during a ceremony Thursday inside the G.G. Brown engineering building on the Ann Arbor campus. The massive, mostly aluminum structure is meant to be played by students and others on campus.Four students came up with the idea three years ago and handed down the project to other students."It's t