Photo-elastic disks
![Photo-elastic disks Photo-elastic disks](/sites/default/files/styles/embed_lg_1x/public/photos/2016-05-18-granular-physics-image1.jpg?itok=Xip3g0PD)
Top: a photo-elastic disk at rest (left) and squeezed (right). Bottom: photo-elastic disks during an experiment. Granular force chains appear as multicolour bands on the surface of the disks. These photos are taken using a polarized lens.
Date:
18 May 2016
Copyright OIST (Okinawa Institute of Science and Technology Graduate University, 沖縄科学技術大学院大学). Creative Commons Attribution 4.0 International License (CC BY 4.0).