J. Verhulst et P. Onghena, CIRCASEPTENNIAN (ABOUT 7-YEAR) PERIODICITY IN THE DISTRIBUTION OF BIRTH YEARS OF NOBEL LAUREATES FOR PHYSICS, Psychological reports, 82(1), 1998, pp. 127-130
The distribution of birth years for Nobel physicists shows a circasept
ennian (about 7-year) periodicity. This observation extends an earlier
observation of a circaseptennian pattern in the distribution of birth
years for early quantum physicists. In both categories, birth rate te
nds to maximize in years belonging to the (7n + 4) phase.