The chalk moved over the blackboard, outlining the basic relation between nexus acceleration and the magical fields angular momentum. Starswirl the Bearded frowned, something was missing… but what? He glanced at the list of data collected from the experiments this morning. Nope, something was definitely wrong… either with his own measurements or with the equation itself. Dismissing the former as impossible, he shot a glare at the offending equation. Its was complete jibber jabber, the simpleton who had discovered the relation must have limited his range of tests to weak acceleration only.