**Physics Notes - Herong's Tutorial Notes** - v3.22, by Dr. Herong Yang

Relativity of Simultaneity in Minkowski Diagram

This section provides a demonstration of the relativity of simultaneity phenomenon using a Minkowski diagram.

Minkowski diagram can also be used to demonstrate the relativity of simultaneity phenomenon. Let's follow another simple thought experiment described below:

- Amy stays in frame moving at a speed of v=0.6*c relative to Bob's frame.
- Amy observes two events A, (X',cT')=(2,2), and B, (X',cT')=(6,2), occurred simultaneously at the same time of cT'=2 seconds on her clock.
- However, Bob observes events A, (X,cT)=(4,4), and B, (X,cT)=(9,7), occurred at different times of 4 and 7 seconds based on the Minkowski diagram given below.

So simultaneity is relative to the observing frame.

Table of Contents

Introducion of Frame of Reference

Introduction of Special Relativity

Time Dilation in Special Relativity

Length Contraction in Special Relativity

The Relativity of Simultaneity

►Minkowski Spacetime and Diagrams

What Is Lorentz Transformation?

Constancy of Speed of Light in Minkowski Diagram

Time Dilation in Minkowski Diagram

Length Contraction in Minkowski Diagram

►Relativity of Simultaneity in Minkowski Diagram

Invariant Spacetime Interval in Minkowski Diagram