This week, students in the Multidisciplinary Robotics Course mixed high-tech with medieval combat by creating robots to compete in a jousting competition. These robots were designed, built, and programmed by groups of students consisting of a Mechanical Engineer, an Electrical Engineer, and a Computer Scientist. Each robot was permitted sensors, motors, a small computer, and a lance to strike their opponent with. Unlike televised robot battles, however, these robots had to act autonomously (without outside aid or remote controls) for the duration of each round. The robots were required to emit a high-pitched noise so as to allow their opponent to track them in the ring using sound sensors that the teams designed and built. Some of the most successful robots used additional sensors and extendable lances to hit their opponents from several feet away. The winning robot employed an edge-skirting behavior combined with a retractable lance to avoid hits while striking its enemy repeatedly.