- "One minute you're happily riding your bicycle back from a senior Lagrangian mechanics mid-terms – you know, the warm breeze in your face – next thing you know, you're flying through the air because you just hit a pothole."
- ―Rodney McKay[src]
Lagrangian mechanics is a re-formulation of classical mechanics that combines conservation of momentum with conservation of energy. Dr. Rodney McKay studied this at college. (SGA: "Quarantine")