DEMApples A simple Discrete Element Method implementation in Python. Examples A particle bouncing on top of a particle (with comparatively infinite density and no gravity). A series of particles dropped on top of a particle (with comparatively infinite density and no gravity) with small offsets. A particle bouncing on top of a fixed wall. Particles with and without friction sliding off of other particles (with comparatively infinite density and no gravity). Particles with and without friction sliding along a fixed wall from a starting velocity.