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.
GR Proper Length Program Documentation
A pdf document that briefly describes the GR Proper Length program. It describes how to use the gr_properlength.jar file and contains short tutorial exercises and explorations for use with the gr_probability.jar file. download 104kb .pdf
Published: May 8, 2008
previous versions
GR Proper Length Program Distribution
The materials distributed in this zip file are in support of the GR Proper Length program. This distribution contains the GR Proper Length program, documentation and exercises, and additional parameter sets (xml files) for use with the GR Proper Length Program. download 653kb .zip
Published: May 8, 2008
previous versions
In Windows 8 you should be able to run a Java program (jar file) by double clicking on the file if Java is installed.
On Mac OS X you must first lower the security to allow non App store programs to run. Then click on the jar file and select open to run it. This extra step only needs to be done the first time the program is run.
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>.
Christian, W., Belloni, M., & Cox, A. (2008). GR Proper Length Program [Computer software]. Retrieved October 10, 2024, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=7009&DocID=340
Christian, W, M. Belloni, and A. Cox. "GR Proper Length Program." https://www.compadre.org/Repository/document/ServeFile.cfm?ID=7009&DocID=340 (accessed 10 October 2024).
Christian, Wolfgang, Mario Belloni, and Anne Cox. GR Proper Length Program. Computer software. 2008. Java 1.5. 10 Oct. 2024 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=7009&DocID=340>.
%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
%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
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