Einstein's Two Postulates and Inertial Frames

What this note covers

1. The Cracks in Newton's Universe: Limitations of Classical Physics at Relativistic Speeds
2. Inertial Frames of Reference: Defining the Playing Field
3. Einstein's Two Postulates of Special Relativity
4. How the Postulates Demolish Classical Notions of Absolute Time
5. The Relativity of Simultaneity: When 'At the Same Time' Loses Meaning
6. Worked Example: Applying the Postulates to Analyse an Observer Scenario
7. Classical vs Relativistic Worldview: A Structured Comparison

7 sections · 12 key terms & formulas · 6 common mistakes