Relativity And Classical Field Theory | Special

The consequence is that space and time are not independent. They merge into a four-dimensional manifold called . In this framework, "distance" is replaced by the spacetime interval , which remains constant even as individual observers disagree on lengths (length contraction) and durations (time dilation). 2. The Shift to Fields: Classical Field Theory

) is constant for all observers, regardless of their motion. Special Relativity and Classical Field Theory

Classical Field Theory (CFT) moves physics away from "action-at-a-distance" (like Newton’s gravity) toward the idea of —quantities assigned to every point in spacetime. The consequence is that space and time are not independent