Rigid body research focuses on the study of objects that do not deform when subjected to external forces or displacements. These objects maintain their shape and size regardless of the forces acting upon them, making them ideal for studying mechanics and dynamics principles. Research in this area often involves the analysis of the motion, stability, and collisions of rigid bodies in various physical systems, such as robotics, biomechanics, and physics. The goal of such research is to understand and predict the behavior of rigid bodies in different scenarios to improve the design, control, and performance of systems that incorporate them.