Polarising Filter stress Determination

Description

Demonstrate stress patterns in solids with this new and valuable equipment. Two polarising filters, mounted on a graduated frame are placed on a plastic base. Clear acrylic pieces of different shapes are introduced between the filters; when pressure is applied to the solids the resulting stress patterns are observed.
An important method of demonstrating polarisation and stress. Includes instructions.
Size: 7.08″ L x 4.52″ W x 2.36″ H
Grades 9+