Lesson 1: Relativity - What is it?
Note: For Fermilab's Time Dilation Challenge and The Relativity Game, you need Shockwave. You may painlessly Download Shockwave here if you do not have it.
Lesson 2: Time Dilation
Lesson 3 : Relativistic Mass
Lesson 4 : Length Contraction
The mover, traveling at 50% c, sees the point travel past the meter stick at 1.5 x 108 meters/second. Since the meter stick is 3.0 x 108 meters long, the mover sees the point in space take: