The discussion centers on the Mozzi axis of instantaneous rotation, a concept in rigid-body motion often taught in advanced physics courses, such as at Goethe University Frankfurt. Participants note that this topic is typically beyond the scope of basic kinematics, which usually covers simpler equations for motion with constant acceleration. The conversation highlights a need for English-language textbooks that cover this advanced material, with references made to "Classical Mechanics" by Kibble and Berkshire. There is a recognition that the title of the discussion may be misleading, as it implies a focus on basic kinematics rather than more complex topics like rigid-body motion and the Coriolis force. Overall, the thread emphasizes the advanced nature of the Mozzi axis concept in the context of kinematics.