Exploring Einstein's principle of relativity

This site aims to explain puzzling aspects of physics to non-physicists who have a basic grasp of mathematics. Many of these puzzles arise from Einstein's theory of special relativity.

Explanations are presented in the following pdfs:

If you are already acquainted with Einstein's theory you are invited to consider the following paradoxes and difficulties:

1. Light
   
2. Blue or bluer?
   
3. Mass
   
4. Frame equivalence
   
5. Electromagnetism
   
6. Distance contraction
   
7. Synchronization
   
8. Clock rate
   
9. E=mc²
   
10. Conservation principles
    
    
11. Equivalence principle (general relativity)