Abstract
RYCE has recently directed attention1 to the resemblance between curves representing the division of electrically charged liquid drops and mass yield curves for nuclear fission. He points out that the set of curves obtained from liquid drop considerations are similar to the fission yield curves (ref. 1, Fig. 1 left) obtained by Gibson2 for fission of plutonium-239 induced by bombardment with deuterons of various energies. In the former, Ryce1 has plotted the fractional energy change, Ef, versus the fractional volume change, Vf, for the division of a surface-charged drop. A Vf value of 0.5 corresponds to symmetric division. The parameter y is defined as: 
where Q is the charge on the drop, R the radius and T is the surface tension.
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References
Ryce, S. A., Nature, 209, 1344 (1966).
Gibson, W. M., thesis, Univ. California at Berkeley (1956).
Ryce, S. A., and Wyman, R. R., Canad. J. Phys., 42, 2185 (1964).
Bohr, N., and Wheeler, J. A., Phys. Rev., 56, 426 (1939).
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MORRIS, S., SHARMA, R. Liquid Drop Model and Asymmetric Nuclear Fission. Nature 211, 624–625 (1966). https://doi.org/10.1038/211624a0
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DOI: https://doi.org/10.1038/211624a0
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