Fig. 3.

Cell velocity distributions display universal statistics. (A) Velocity maps for different cell types and for simulations as obtained from PIV. The colors indicate the orientation of the velocity following the color wheel. The length of the arrows is proportional to the magnitude of the velocity. (Scale bar, 100 μm.) (B) The corresponding distributions of velocity magnitudes. (C) Scaling the velocities by their magnitude leads to a collapse of all of the distributions, apart from small deviations in the tails. (D and E) The distribution of the orientations of the velocities.