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Olivia Ortiz was 17 when she arrived at the University of Chicago five years ago. She says now that she was sheltered; she'd attended a mostly female charter school in Phoenix and knew little about boys.She was bright and studious and aspired to live a life of the mind—a common aspiration among U. She did know a bit about sexual harassment after working one summer at a movie theater.Dedicated at the University of Chicago on October 10, 2016.In 1946, Willard Libby proposed an innovative method for dating organic materials by measuring their content of carbon-14, a newly discovered radioactive isotope of carbon.He was her first boyfriend, the first guy she'd ever kissed.At the beginning they had a discussion about sexual boundaries. "I told him, 'I don't want contact with your genitals, I don't want you touching my genitals.She made a game of dressing grungily enough to avoid getting hit on by customers, yet not so grungily that her boss would send her home.During Orientation Week she attended the mandatory presentations on campus safety, which included a comedy program called Sex Signals, meant to educate students about rape prevention.

The student orientation leaders jokingly passed out rape whistles—because who, in the history of college rape prevention, has ever actually used a rape whistle?It is an understatement to say that I don’t take this step easily or lightly.As most of you know, I’ve been reflecting on this question for several years.Known as radiocarbon dating, this method provides objective age estimates for carbon-based objects that originated from living organisms.The “radiocarbon revolution” made possible by Libby’s discovery greatly benefitted the fields of archaeology and geology by allowing practitioners to develop more precise historical chronologies across geography and cultures.