One of the most basic structural aspects of relativistic spacetime is the description of how time and distances are altered by motion. The theory of special relativity describes a spacetime framework ...

What is a fake force? Let me illustrate with an example. Suppose you want to use Newtonian mechanics. You know - where the net force is the rate a which the momentum changes with time? Or maybe you ...

The Sagnac effect, first observed over a century ago, remains central to our understanding of relativistic kinematics and the operational definitions of simultaneity. Fundamentally, this effect arises ...