brewster, unit, brewster, unit, used, measure, susceptibility, material, photoelasticity, value, stress, optic, coefficient, material, unit, dimensions, reciprocal, those, stress, brewster, defined, equal, displaystyle, square, metres, newton, displaystyle, sq. The brewster B is a non SI unit used to measure the susceptibility of a material to photoelasticity or the value of the stress optic coefficient of the material The unit has dimensions reciprocal to those of stress One brewster is defined to be equal to 10 12 displaystyle 10 12 square metres per newton m2 N or 1 Pa or 10 13 displaystyle 10 13 square centimetres per dyne cm2 dyn The unit is named after David Brewster who discovered stress induced birefringence in 1816 External links EditDefinition of the Brewster Retrieved from https en wikipedia org w index php title Brewster unit amp oldid 1053552976, wikipedia, wiki, book, books, library,
