Technical Implications of Organic Syntheses in Ball Mills - Ball Milling Towards Green Synthesis: Applications, Projects, Challenges - page 248

Figure 10.4 Grinding body trajectories in a planetary ball mill monitored by video analysis (top) and simulated using DEM (bottom; in
each case 10 mm steel balls and without mill feed).
By courtesy of Sandra Breitung-Faes (Technical University Braunschweig).