title: Circaseptennian (about 7-year) periodicity in the distribution of birth years of Nobel laureates for physics.
abstract: The distribution of birth years for Nobel physicists shows a circaseptennian (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 tends to maximize in years belonging to the (7n + 4) phase.
authors.affiliation: Louis Bolk Institute, The Netherlands. Jozef.Verhulst@ping.be
authors.forename: J
authors.initials: J
authors.lastname: Verhulst
authors.forename: P
authors.initials: P
authors.lastname: Onghena
mesh_terms: D001723:Birth Rate; D006801:Humans; D009613:Nobel Prize; D010507:Periodicity; D010825:Physics / Q000706:statistics & numerical data*; D012108:Research Personnel / Q000706:statistics & numerical data*