Hey All I figured instead of asking questions I would throw something back. On youtube I found a ton of videos made by the feds in the 40's and 50's that showed how things like power steering and planetary gears work. The videos are old but I learned a ton from them and they are still relevant today. All the videos are in the cheesy classic post war fashion but they are now in the public domain so I figured I would post a few links.

Fluid Coupling (Torque Converter):
FLUID COUPLING, THE PRINCIPLES OF OPERATION - YouTube

Power Steering:
HYDRAULIC STEERING - PRINCIPLES OF OPERATION - YouTube

Principles of the Starting Motor:
PRINCIPLES OF THE STARTING MOTOR - YouTube

Car Alternatorsdifferent channel but still wicked informative)
how car alternators work - YouTube

A.C. Motors:
AC MOTORS - YouTube