Mona Lisa, she's 83 percent happy, 9 percent disgusted, 6 percent fearful, and 2 percent angry. At least according to some new computer software that can recognize emotions. Thomas Huang, the beckman institute for advanced science at the University of Illinois, working in collaboration of the Unversity of Amsterdam and his colleague are experts at developing better way for human and computer to communicate to each person or online. For computer can use homework research to recognize the subtle facial movement the human use to express how they feel about the computer's using in it. The fact, they perform this same impressive for calculation for every day. Most of them would have trouble their issue of describing each facial trait that conveys happy, worried and etc. The Mona Lisa demonstration is really intended to bring a big smile to your face. By the way, making you happy face in this experiment also make you feel slightly happy to your face. Making faces could be reveal so they have a much of the science of emotions.