Step 1. You will need a source of polarised light like a laptop, tablet or phone, polaroid sunglasses or 3D glasses and some plastic object.

Revealing stress patterns in plastic with polarised light.

Size: 6000px × 4000px
Photo credit: © Derek Eyre / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: advanced, crossed, educational, instructional, light, physics, plastic, polarisation, polarised, polariser, polarization, polarized, polarizer, polaroid, step, stress