stearic paraffin, and potato show evidence of obeying scaling laws; this suggests the
possibility of self-organized criticality in fragmenting. The probability of finding a fragment
scales inversely to a power of the mass; the power, or scaling exponent, was found to
depend on the shape of the object rather than on the material. For objects of different shapes
(balls, cubes, half cubes, plates, and bars) scaling was found for fragment sizes smaller than …