Physical Properties of Materials, Second Edition
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Movie 15: Stress Between Polarizers

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Movie Script:

This plexiglass system is on a light table, with one polarizer below it and another one above it; the polarizers have opposite orientations, i.e. they are crossed. When stressed, we see color associated with stress polarization, as also see on page 391 and on the front cover of "Physical Properties of Materials". When the stress is removed, the color disappears.

 

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