The frustrated prismaparticles

I was inspired to the title above by the research on glas of Peter Schall of the University of Amsterdam who coworked with Harvard to have insight in streaming of glasparticles: the compactness of particles in glas is so dense that they can't all moove at the same time, 'frustrating' one another.

Thus a prisma is a 'frustrated' fluid, a tear is not.

An article will appear in Science, 21 december.