Lorentz contraction, Bell's spaceships, and rigid body motion in special relativity

TL;DR

This paper clarifies the concept of Lorentz contraction in special relativity, relating it to Bell's spaceship paradox and the motion of rigid bodies, aiming to correct common student misconceptions.

Contribution

It provides a simplified explanation connecting Lorentz contraction, Bell's paradox, and rigid body motion in special relativity, addressing misconceptions.

Findings

Clarifies the meaning of Lorentz contraction

Connects Bell's spaceship paradox with rigid body motion

Offers a simplified explanation for educational purposes

Abstract

The meaning of Lorentz contraction in special relativity and its connection with Bell's spaceships parable is discussed. The motion of Bell's spaceships is then compared with the accelerated motion of a rigid body. We have tried to write this in a simple form that could be used to correct students' misconceptions due to conflicting earlier treatments.