Education Prize Logo
Science SPORE Prize
November 2011

NSF Logo
The Open Source Physics Project is supported by NSF DUE-0442581.

Computer Program Detail Page

Item Picture
written by Juan Aguirregabiria
edited by Wolfgang Christian
The Ejs Lagrange Top model displays the motion of a heavy symmetric top under the effect of gravity.  The top has an initial angular speed that provides the precessional, nutational, and rotational speeds.  The ratio of Lz to Lx can be set via slider and the initial angular position and angular speeds can be changed via textboxes.  You can 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.  

Ejs Lagrange Top 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_ehu_rigid_bodies_Lagrange.jar file will run the program if Java is installed.  Ejs is a part of the Open Source Physics Project and is designed to make it easier to access, modify, and generate computer models.  Additional Ejs models for rigid body dynamics are available.  They can be found by searching ComPADRE for Open Source Physics, OSP, or Ejs.

Please note that this resource requires at least version 1.5 of Java (JRE).
View the source code document attached to this resource
Subjects Levels Resource Types
Classical Mechanics
- Rotational Dynamics
= Conservation of Angular Momentum
= Moment of Inertia
- Upper Undergraduate
- Instructional Material
= Activity
= Curriculum support
= Interactive Simulation
Intended Users Formats Ratings
- Educators
- Learners
- Professional/Practitioners
- application/java
  • Currently 0.0/5

Want to rate this material?
Login here!


Access Rights:
Free access
License:
This material is released under a GNU General Public License Version 2 license. Additional information is available.
Rights Holder:
Juan M. Aguirregabiria
Merlot:
pending
Keywords:
Easy Java Simulatiomns, Ejs, Lagrange, OSP, Open Source Physics, moment of inertia, rotational motion, top
Record Creator:
Metadata instance created August 18, 2008 by Mario Belloni
Record Updated:
June 17, 2013 by Matt Mohorn
Last Update
when Cataloged:
August 18, 2008
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
J. Aguirregabiria, Computer Program EJS LAGRANGE TOP MODEL, Version 1.0 (2008), WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7871&DocID=654).
AJP/PRST-PER
J. Aguirregabiria, Computer Program EJS LAGRANGE TOP MODEL, Version 1.0 (2008), <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7871&DocID=654>.
APA Format
Aguirregabiria, J. (2008). Ejs Lagrange Top Model (Version 1.0) [Computer software]. Retrieved April 20, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7871&DocID=654
Chicago Format
Aguirregabiria, Juan. "Ejs Lagrange Top Model." Version 1.0. http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7871&DocID=654 (accessed 20 April 2014).
MLA Format
Aguirregabiria, Juan. Ejs Lagrange Top Model. Vers. 1.0. Computer software. 2008. Java (JRE) 1.5. 20 Apr. 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7871&DocID=654>.
BibTeX Export Format
@misc{ Author = "Juan Aguirregabiria", Title = {Ejs Lagrange Top Model}, Month = {August}, Year = {2008} }
Refer Export Format

%A Juan Aguirregabiria
%T Ejs Lagrange Top Model
%E Wolfgang Christian, (ed)
%D August 18, 2008
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7871&DocID=654
%O 1.0
%O application/java

EndNote Export Format

%0 Computer Program
%A Aguirregabiria, Juan
%D August 18, 2008
%T Ejs Lagrange Top Model
%E Christian, Wolfgang
%7 1.0
%8 August 18, 2008
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7871&DocID=654


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 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.

Save to my folders

Contribute

Similar Materials

The OSP Network:
Open Source Physics - Tracker - EJS Modeling
Physlet Physics
Physlet Quantum Physics