The Science Asylum | How to find Stress Patterns with Polarizing Filters @ScienceAsylum | Uploaded 2 years ago | Updated 3 hours ago
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Polarized sunglasses allow you to see the orientation of light. That combined with birefringence can help you see patterns of stress inside materials. But how does that work exactly?

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PhysicsGirl on Birefringence and Polarization:
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OTHER SOURCES

http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/polar.html
http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/polabs.html
http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/biref.html
https://depts.washington.edu/mictech/optics/me557/photoelasticity.pdf
constructionspecifier.com/fully-tempered-glass-and-spontaneous-fracture
viracon.com/wp-content/uploads/2020/03/VTT-009_QuenchPatternCharacteristics.pdf
cardinalcorp.com/source/pdf/tsb/fg/FG01_01-2016.pdf
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CHAPTER TIME CODES

00:00 Cold Open
00:39 Polarization Explained
03:24 Birefringence Explained
04:18 Pattern Examples
05:18 Types of Glass
06:17 Breaking Glass
07:34 Summary
08:00 Sponsor Message
09:08 Outro
09:33 Featured Comment
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Corrections:

5:43 Just to clarify: Side windows and rear windshields of automobiles are tempered. Front windshields are annealed, specifically two pieces of annealed glass with plastic between them to hold it together.