The conventional method of measuring the amount of radioactive carbon in a sample involved the detection of individual carbon decay events.
Suzanna Rose and Irene Frieze , who have studied men's and women's scripts for first dates, point out that the behaviors expected of men form the more rigid script. For instance, in face-to-face meetings, physical appearance is the initial basis of attraction while in cyberdating, face-to-face contact is replaced by conversational skill as the basis for the initial impression. But among others, especially the large and growing middle class and the respectable working class, the fact that young men and women spent more time away from the watchful guidance of parents became a source of considerable cultural concern and anxiety in the late nineteenth and early twentieth century, a concern most effectively articulated by social reformer Jane Addams in The Spirit of Youth in the City Streets. Movies in the Age of Media Convergence. Charlie Chaplin 's film The Great Dictator was a brave and innovative parody, also on a political theme.