Pieces of deformed plastic in cross-polarized light (back to birefringence overview). A folded sheet of plastic. (2017-01-12)
A deformed sheet of plastic. (2017-01-12)
A deformed sheet of plastic. (2017-01-12)
A deformed sheet of plastic. (2017-01-12)
A deformed sheet of plastic. (2017-01-12)
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