The Square Light Clock and Special Relativity

@article{Galli2012TheSL,
  title={The Square Light Clock and Special Relativity},
  author={John Ronald Galli and Farhang Amiri},
  journal={The Physics Teacher},
  year={2012},
  volume={50},
  pages={212-214}
}
A thought experiment that includes a square light clock is similar to the traditional vertical light beam and mirror clock, except it is made up of four mirrors placed at a 45° angle at each corner of a square of length L0, shown in Fig. 1. Here we have shown the events as measured in the rest frame of the square light clock. By studying the same cycle of events measured in a frame of reference where the square light clock is in motion with speed of v, we can derive both time dilation and… 
3 Citations

Figures from this paper

Time Dilation of Moving Clocks as a Consequence of Length Contraction
In an interesting article by Rindler [1], that Einstein was the first to realize (in sec. 4 of [2] (1905)) that observers of moving clocks consider them to run slow, the last footnote reads:
A general principle for light reflecting from a uniformly moving mirror: A relativistic treatment
We investigate the reflection of light from a mirror moving at relativistic speeds and introduce a general principle to determine the relationship between the incident and reflected angles. This
A Simple Derivation of Time Dilation and Length Contraction in Special Relativity
Undergraduate physics majors typically begin their study of modern physics with special relativity. It is here that physics students first encounter the counterintuitive concepts of time dilation and

References

SHOWING 1-7 OF 7 REFERENCES
Reflection of light from a uniformly moving mirror
We derive a formula for the law of reflection of a plane-polarized light beam from an inclined flat mirror in uniform rectilinear motion by applying the Huygens–Fresnel principle. We then use this
Reflection of light from a moving mirror and related problems
The Maxwell equations, the Minkowski material equations, and the conditions which must be obeyed by fields on moving interfaces are used to obtain expressions for the frequencies and wave vectors of
Introduction to special relativity
Part 1 The foundations of special relativity: schematic account of the Michelson - Morley experiment inertial frames in special relativity Einstein's two axioms for special relativity coordinates -
Space-Time Physics
E. F. Taylor and J. A. Wheeler London: W. H. Freeman ' Co. 1966. Pp. 208. Price £1 6s. In recent years there has been something of a revolution in the teaching of the special theory of relativity. A
Zur Elektrodynamik bewegter Körper
Este material fue digitalizado en el marco del proyecto subvencionado por la Fundacion Antorchas y se encuentra en la Biblioteca del Departamento de Fisica de la Facultad de Ciencias Exactas de la
Introduction to Special Relativity (Wiley
  • New York,
  • 1968