text: Limiting cars can have multipal advantages to it. You can help stop half of the greenhouse gases that are caused from cars, relieve stress, and become less dependent for the need a car. This will cause you to become a better citizen and help make the world last longer for hundreds of generations to come.                "Making Mona Lisa Smile" is an article in which the auother describes the new technology Facial Action Coding System. This newly invented technology can detect your mood just by your face. It constructs a 3-D computer model of your face, all 44 major muscles. Using this technology to read emtional expressions of students in a classroom is valuable.