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Foucault Rod Model
written by Cleon Teunissen
The Foucault Rod model displays the vibration of a circumnavigating rod. One end of the rod is firmly secured to a support. The free end of the rod has a weight attached, like the bob of a pendulum. The support of the rod is circumnavigating a central axis. The plane of swing of the Foucault rod is affected by the rotation in the same way as the Foucault pendulum is.

The simulation shows simultaneously the motion with respect to the inertial coordinate system, and the motion as seen from a co-rotating point of view.  For the co-rotating view there is a close-up view and an overview.

You can examine and modify this simulation if you have EJS installed by right-clicking within the plot and selecting "Open EJS Model" from the pop-up menu item.  

The  Foucault Rod model was created using the Easy Java Simulations (EJS) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.  Double clicking the ejs_nl_teunissen_foucault_rod.jar file will run the program if Java is installed.

Additional information about this model can be found by visiting the author's web site:

Please note that this resource requires at least version 1.5 of Java (JRE).
1 source code document is available
Subjects Levels Resource Types
Classical Mechanics
- Rotational Dynamics
- Upper Undergraduate
- Instructional Material
= Simulation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
  • Currently 0.0/5

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Access Rights:
Free access
This material is released under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 license.
Rights Holder:
Cleon Teunissen
Easy Java Simulations, Ejs, OSP, Open Source Physics, pendulum, rotating frame
Record Cloner:
Metadata instance created November 3, 2009 by Wolfgang Christian
Record Updated:
June 6, 2014 by Andreu Glasmann
Last Update
when Cataloged:
January 19, 2009
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
C. Teunissen, Computer Program FOUCAULT ROD MODEL, Version 1.0 (2009), WWW Document, (
C. Teunissen, Computer Program FOUCAULT ROD MODEL, Version 1.0 (2009), <>.
APA Format
Teunissen, C. (2009). Foucault Rod Model (Version 1.0) [Computer software]. Retrieved October 23, 2021, from
Chicago Format
Teunissen, Cleon. "Foucault Rod Model." Version 1.0. (accessed 23 October 2021).
MLA Format
Teunissen, Cleon. Foucault Rod Model. Vers. 1.0. Computer software. 2009. Java (JRE) 1.5. 23 Oct. 2021 <>.
BibTeX Export Format
@misc{ Author = "Cleon Teunissen", Title = {Foucault Rod Model}, Month = {January}, Year = {2009} }
Refer Export Format

%A Cleon Teunissen %T Foucault Rod Model %D January 19, 2009 %U %O 1.0 %O application/java

EndNote Export Format

%0 Computer Program %A Teunissen, Cleon %D January 19, 2009 %T Foucault Rod Model %7 1.0 %8 January 19, 2009 %U

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Foucault Rod Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Foucault Rod Model.

relation by Wolfgang Christian

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