For the coldprotosolar accretiondisc, convectiveinstability will gradually endfrom the outer region to the center and from the surface to central plane.
In creating his "fungus accretion" vases, Simon brushed the rough surface of a ceramic vase with a clay-and-water solution until it built upon itself like a hand-dripped sand castle.
Since the inner part of the accretion disc orbits faster than once a second, as the hot gas ploughs into the neutron star's surface, it torques the star up to ever higher speeds.