Figure 2
From: Size segregation of irregular granular materials captured by time-resolved 3D imaging
(A–C) Visualisations of three rising Brazil nuts (i, ii, iii) and two of the non-rising Brazil nuts (iv, v) coloured according to their orientation. (D) Orientation-height phase space for all of the Brazil nuts for all time points, with orientation measured as the angle of the major axis of the moment of inertia of the Brazil nuts relative to the vertical laboratory axis and height corresponding to the vertical centre of mass of each nut. Trajectories of rising nuts i, ii and iii are represented in white, red and yellow respectively, with the trajectories of non-rising nuts iv and v shown in orange and magenta respectively. The remaining non-rising Brazil nuts are represented in grey.
