This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionPhotoelasticimetry1.JPG
Picture of a CD plastic cover between a polarizer and a flat screen monitor. The flat screen light is polarized, so the birefringence of the plastic layer shows colored fringes after the polarizer. Also called Photoelasticimetry or en:Photoelasticity.
Made by me.
Date
14 August 2006 (original upload date)
Source
No machine-readable source provided. Own work assumed (based on copyright claims).
Author
No machine-readable author provided. Fffred~commonswiki assumed (based on copyright claims).
Licensing
Public domainPublic domainfalsefalse
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Captions
Add a one-line explanation of what this file represents