Preen rate in inches per year: Diagram. Number of inches below the waistline by year by media. After the bikini broke the navel barrier about 1946, midriff exposure below the navel (belly-down) migrated from beauty queens in men's magazines to Vogue, Life and the real world beach. The graph shows that pinup media precess mass media by a duration of time measured in months and years (1)
More on this is found in The Garden of Eden.
Judson Rosebush, Second Skin Manuscript, 1988. 1 picture.