Published March 2009 | Version v1
Journal article

How to obtain the Lorentz space contraction formula for a moving rod from knowledge of the positions of its ends at different times

  • 1. Lab. de Optica Cuantica, Depto. de Fisica, Universidad A. Metropolitana-Iztapalapa, 09340 Mexico D.F., Ap. postal. 55-534 (Mexico)

Description

The Lorentz length contraction for a rod in uniform motion is derived performing two measurements at arbitrary times. Provided that the velocity of the rod is known, this derivation does not require the simultaneous measurement of two events. It thus avoids uncomfortable superluminal relationships. Furthermore, since the observer's simultaneous measurement is not needed in order to observe spatial contraction, this procedure is more akin to the Lorentzian relativity approach and is better suited for more general schemes such as deformed spacetime versions of special relativity. An example of a space contraction measurement from the same rest position in the observer's frame illustrates the procedure

Availability note (English)

Available from http://dx.doi.org/10.1088/0143-0807/30/2/003

Additional details

Identifiers

DOI
10.1088/0143-0807/30/2/003;
PII
S0143-0807(09)93596-6;

Publishing Information

Journal Title
European Journal of Physics
Journal Volume
30
Journal Issue
2
Journal Page Range
p. 253-258
ISSN
0143-0807
CODEN
EJPHD4

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40071342
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CONTRACTION; MATHEMATICAL SPACE; RELATIVITY THEORY; SPACE-TIME; VELOCITY
Descriptors DEC
SPACE