NCAA Division I-AA independent schools are four-year institutions whose football programs are not part of a football conference. This does not mean that I-AA independents schedule each other for competition like conference schools do. There are considerably less independent schools than in years past; many independent schools later join (or attempt to join) established conferences.
... spinning gyro tops will not simply fall over, but start precessing around. (The precessing motion is perpendicular to the torque trying to make the gyro fall ...