Proceedings of the National Academy of Sciences of the United States of America, Vol. 108, No. 28 (July 12, 2011), pp. 11668-11673 (6 pages) Recent investigations indicate that retinal motion is not ...

The observed motion of a point depends on the motion of the observer. Consider point P on the robotic arm shown below. Three GIFs are shown below the provide the view of the motion of point P as seen ...

Aircraft A and B are flying on the same horizontal plane, each with a constant speed. Aircraft A is traveling on a straight path, whereas the path of B is circular. We are interested in understanding ...