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GR Proper Length Program
written by Wolfgang Christian, Mario Belloni, and Anne Cox
educational validator: Bethany Zach
The GR Proper Length program simulates the distance between points using the Schwarzschild metric.  It displays the proper length between two points and the light-travel path.  It is distributed as a ready-to-run (compiled) Java archive.  Double clicking the gr_properlength.jar file will run the program if Java is installed.

GR Proper Length is part of a suite of Open Source Physics programs that model aspects of General Relativity.  Other programs provide additional visualizations.  They can be found by searching ComPADRE for Open Source Physics, OSP, or General Relativity.

Please note that this resource requires at least version 1.5 of Java.
2 supplemental documents are available
Subjects Levels Resource Types
- Fundamentals
= Relativity
- General Relativity
- Spacetime Fundamentals
= Metric
- Lower Undergraduate
- Upper Undergraduate
- Instructional Material
= Interactive Simulation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
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Access Rights:
Free access
© 2008 2008: Wolfgang Christian. Details available at http://www.opensourcephysics.org/misc/copyright.html.
general relativity, metric, spacetime
Record Creator:
Metadata instance created May 8, 2008 by Anne Cox
Record Updated:
August 22, 2009 by Gregory Comer
Last Update
when Cataloged:
May 8, 2008
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
W. Christian, M. Belloni, and A. Cox, Computer Program GR PROPER LENGTH PROGRAM (2008), WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=7009&DocID=340).
W. Christian, M. Belloni, and A. Cox, Computer Program GR PROPER LENGTH PROGRAM (2008), <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=7009&DocID=340>.
APA Format
Christian, W., Belloni, M., & Cox, A. (2008). GR Proper Length Program [Computer software]. Retrieved October 24, 2017, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=7009&DocID=340
Chicago Format
Christian, W, M. Belloni, and A. Cox. "GR Proper Length Program." https://www.compadre.org/Repository/document/ServeFile.cfm?ID=7009&DocID=340 (accessed 24 October 2017).
MLA Format
Christian, Wolfgang, Mario Belloni, and Anne Cox. GR Proper Length Program. Computer software. 2008. Java 1.5. 24 Oct. 2017 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=7009&DocID=340>.
BibTeX Export Format
@misc{ Author = "Wolfgang Christian and Mario Belloni and Anne Cox", Title = {GR Proper Length Program}, Month = {May}, Year = {2008} }
Refer Export Format

%A Wolfgang Christian
%A Mario Belloni
%A Anne Cox
%T GR Proper Length Program
%D May 8, 2008
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=7009&DocID=340
%O application/java

EndNote Export Format

%0 Computer Program
%A Christian, Wolfgang
%A Belloni, Mario
%A Cox, Anne
%D May 8, 2008
%T GR Proper Length Program
%8 May 8, 2008
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=7009&DocID=340

Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The AJP/PRST-PER presented is based on the AIP Style with the addition of journal article titles and conference proceeding article titles.

The APA Style presented is based on information from APA Style.org: Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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GR Proper Length Program:

Is Part Of General Relativity (GR) Package

The General Relativity (GR) Package contains curricular materials for the teaching of general relativity using the GR Proper Length Program.

relation by Mario Belloni

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