MUD Mired in time...

RECAP: These bones can be thought of as spokes … radii of connected wheels. Their radius sizes and angular speed, when in motion, provide a nice Fourier harmonic similarity. But the speeds are a bit off expected series based on radius alone. Nature cheats. Muscle mass is moved proximal in each segment by using tendons to reach the insertions.

This means the pendulum speed (period) comes from the centers of mass of each leg segment. This matches the polar graphs. The pendulums are metronome-like. Segmental centers of mass were detailed by Braun & Fisher over a century ago!! Were they on to this????? Kinds of motion were computed...