- #1
Sentosa
- 8
- 1
There's a section in my astronomy book on relativity. The image shows a train traveling at a slow speed and a second image of the train approaching the speed of light. The text says the second train is length contracted, but only in the horizontal direction. In the vertical direction the train is not length contracted. If this is the case, then how can the wheels continue to rotate? Take a look at the image; they're obviously not circular.