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File:Plastic Protractor Polarized 05375.jpg

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Original file(2,048 × 1,536 pixels, file size: 738 KB, MIME type: image/jpeg)
Description
English: Tension lines in plastic protractor seen under cross polarized light. When a ray of plane polarised light is passed through a photoelastic material, it gets resolved along the two principal stress directions and each of these components experiences different refractive indices. The difference in the refractive indices leads to a relative phase retardation between the two component waves. The birefringence of the plastic layer shows colored fringes. Also called Photoelasticimetry or photoelasticity. Not seen does not mean No difference. WYSIATI
Français: Lignes de tension dans un rapporteur en plastique vu sous une lumière polarisée. Lorsqu'elle traverse un matériau sous tension mécanique, les deux composantes de l'onde subissent un retard l'une par rapport à l'autre. Ce retard fait apparaitre en lumière blanche des irisations dans le matériau. Ce phénomène, nommé photoélasticité, est mesuré par photoélasticimétrie.
Date (, according to Exif data)
Source
English: Own Photograph
Français : Mon oeuvre
Türkçe: Kendi çalışmam
Author Nevit Dilmen
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GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
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current10:54, 3 April 2008Thumbnail for version as of 10:54, 3 April 20082,048 × 1,536 (738 KB)Nevit (talk | contribs){{Information |Description=Tension lines in plastic protractor seen under polarized light. |Source=self-made |Date=2004 |Author= Nevit |Permission= |other_versions= }} Category:Nevit Dilmen Category:Protractors
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