| dictionary.com defines physics as follows:    1. Physics. The tendency of a body to resist acceleration; the tendency of a body at rest to remain at rest or of a body in straight line motion to stay in motion in a straight line unless acted on by an outside force.2. Resistance or disinclination to motion, action, or change: the inertia of an entrenched bureaucracy.
 Since a flywheel doesn't travel in a straight path we must default to definition number 2. I admitted I was wrong, drmx was kind enough to explain my misunderstanding of the concept, it's time for you to STFU. 
"It's been my experience that straight-line acceleration is probably the first aspect of automotive performance that any intelligent driver gets bored with." - Peter Gregg |