The circles on the bottom are numbered #1, 2, 3, 4, etc (from left to right)[br]The circles on the left are numbered #1, 2, 3, 4, etc (from bottom to top)[br][br]The points on circles #1 are rotating at the same rate except the point on the bottom circle #1 is additionally rotating by the phase shift angle.[br][br]The points on circles #2 are rotating at twice the rate of #1, except the point on the bottom circle #2 is additionally rotating by the phase shift angle.[br][br][br]The points on circles #3 are rotating at twice the rate of #1, except the point on the bottom circle #3 is additionally rotating by the phase shift angle.[br][br]etc.[br]