A large crowd of “time travelers” enjoyed a journey through the realities and fantasies of time during “Manipulating Time Using Science, Technology and Literature,” presented Tuesday evening in the Klump Academic Center Auditorium by David S. Richards, professor of physics. The second talk in the 2016-17 Technology & Society Colloquia Series, the discussion ranged from scientific principles to personal perceptions of time. The audience was encouraged to participate in a demonstration measuring reaction time utilizing “time sticks” and by submitting their definitions of time that were transcribed and shown on the large screen. A question-and-answer session and a post-talk reception in Wrapture concluded the evening. The next colloquium is scheduled for Feb. 7: “A General Assertion is Worth Innumerable Pictures,” by Robert N. McCauley, a professor and founding director of the Center for Mind, Brain and Culture at Emory University. Richards' presentation has been added to the Penn College YouTube channel.http://www.youtube.com/watch?v=fFzlGRj501M