The results of multidimensional analysis of the properties of fragment
s of fission of U-236 induced by 1-MeV neutrons are presented. A doubl
e ionization fission chamber with Frisch grids was used. The measureme
nt method and details of the data analysis are described in detail. Th
e average and differential properties of the fragments were observed t
o exhibit details reflecting the fine structure of the potential-energ
y surface of the fissioning nucleus. The cold-fragmentation spectra of
uranium are analyzed. Global changes of the angular distributions of
the fragments with increasing separation of the scission point from th
e saddle configuration are established. They can be explained by nonco
nservation of the quantum number K in the fission process resulting fr
om the effects of viscosity, admixture of a vibration resonance, or se
paration in K at the so-called scission barrier between the fission an
d fusion valleys.