Arthur T Winfree


Tomographic reconstruction of a slice out of a volume of a chemically excitable medium. Top panel colors boundaries of the slice in proportion to ferroin concentration. Middle colors an iso-concentration surface bounding the excited zone (a propagating wavefront). Bottom isolates (by its concentration and zero rate of change) the vortex line around which this activation propagates in 3D. (see A.T. Winfree et al "Quantitative optical tomography of chemical waves and their organizing centers", Chaos 6(4) 617-626, 1996).