Taking advantages of accurate control and never pausing transaction execution,the timestamps ordering plays more important roles in distributed transaction management system.

This article,combining geometry method by light cone and projection between two intertial frame with Lorentz transformations,mainly discusses the time sequence of space-like events among the areas of different time-space under a transformation of frame of reference and objectively expounds the law of causation about special relativity.

Two experiments were conducted to explore the effects of temporal orders and temporal distances on language comprehension.