Sugar-coated placebo pills (Weimer Pharma GmbH) used in the study of packing of ellipsoids.

From the article:

Local Origin of Global Contact Numbers in Frictional Ellipsoid Packings
Fabian M. Schaller, Max Neudecker, Mohammad Saadatfar, Gary W. Delaney, Gerd E. Schröder-Turk, and Matthias Schröter
Phys. Rev. Lett. 114, 158001 (2015)

View Issue Table of Contents