Website Detail Page

published by the American Physical Society
This annotated image from the American Physical Society presents the results of an experiment in which small photoelastic disks on a tray are squeezed in one direction and expanded in the perpendicular direction. The site includes images made using crossed polarizers, and the birefringence of the discs reveals the forces inside them. The site includes two images, a video, and a brief description of the experiment.
Subjects Levels Resource Types
- Polarization
= Birefringence
Motion, Forces, and Energy
- Applications of Newton's Laws
- Statics of Rigid Bodies
= Stresses
- Lower Undergraduate
- Informal Education
- Upper Undergraduate
- Reference Material
= Article
- Audio/Visual
= Image/Image Set
= Movie/Animation
Intended Users Formats Ratings
- Learners
- Researchers
- General Publics
- image/jpeg
- text/html
- video/x-ms-wmv
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Additional Information
Physics To Go This resource was a Physics To Go feature from February 1, 2009 until February 16, 2009. View the feature here!

Access Rights: Free access
Restriction: © 2009 American Physical Society
Has a copyright or other licensing restriction.
Keywords: Stress, birefringence, force, photoelastic, polarization, polarize, polarizer
Record Creator: Metadata instance created January 28, 2009 by Logan Hancock
Record Updated: Jun 01, 2011 by Lyle Barbato
Last Update
when Cataloged:
January 16, 2008
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
(American Physical Society, College Park, 2009), WWW Document, (
Shear Forms Force Chains (American Physical Society, College Park, 2009), <>.
APA Format
Shear Forms Force Chains. (2008, January 16). Retrieved April 17, 2014, from American Physical Society:
Chicago Format
American Physical Society. Shear Forms Force Chains. College Park: American Physical Society, January 16, 2008. (accessed 17 April 2014).
MLA Format
Shear Forms Force Chains. College Park: American Physical Society, 2009. 16 Jan. 2008. 17 Apr. 2014 <>.
BibTeX Export Format
@misc{ Title = {Shear Forms Force Chains}, Publisher = {American Physical Society}, Volume = {2014}, Number = {17 April 2014}, Month = {January 16, 2008}, Year = {2009} }
Refer Export Format

%T Shear Forms Force Chains
%D January 16, 2008
%I American Physical Society
%C College Park
%O image/jpeg

EndNote Export Format

%0 Electronic Source
%D January 16, 2008
%T Shear Forms Force Chains
%I American Physical Society
%V 2014
%N 17 April 2014
%8 January 16, 2008
%9 image/jpeg

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 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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