by Martin Krieger
Doing Physics arose out of my teaching a course on physics for honors nonscience students. I wanted to give students the motivations for what physicists do, and analogize those motivations with what they were learning in their other freshman courses on literature and history and social science. Hence the references to the market, kinship theory, spreadsheets, and theater (Greek tragedy was what they were reading).
But I would not have had those analogies in mind if I had not spent all of my career teaching in schools of city planning, public policy, and social science. I received my PhD in physics and along the way realized that experimental work was not for me, at least in high energy physics as it was constituted in 1969 and in the subsequent 40+ years. I had some ideas about modeling urban change when I was a graduate student, using a model drawn from a physicists’ model of a phase transition (such as freezing), and developed them during spare moments using a computer model of what would now be called agent-based modeling or object-oriented programming, albeit written in Fortran. I could not convince my postdoc institution that it might go in this direction, using physics ideas to understand some of society, but I was fortunate that the city planning department thought the work was interesting enough to invite me for a semester. I came to visit and stayed in the field. My subsequent research has had two big themes: the meaning of models from physics and the mathematics they use; theories of design and planning, as understood in urban planning, and more generally documenting urban phenomena. Probably most curious, at least to me, was that often I would find ideas from the sacred and religious realm, drawn from my religious background and my education in the great books, suggested models much as did my education in physics.
My college asked us to read C. P. Snow’s Two Cultures before we started our freshman year. Snow was a scientist by training, a government advisor, and a novelist. Since then, I keep discovering how much we live in one culture, with local sub-cultures that borrow from the main culture and other sub-cultures. Doing Physics is one testimony to that, but all my books work in this vein. The books on mathematical physics keep asking what is the meaning behind the mathematical calculation and proof, and that meaning must be about how nature works. The work on urban photographic documentation say that what we see is evidence of larger historical forces, and you can see that in front of your eyes if you pay attention. It is not a matter of technical economics or geography, alone, but also history and the built environment and its decay and revitalization.
My forthcoming book, due out in late 2013, is a guide to surviving as an academic. Just as Teiresias was in his life a man and then a woman and then a man…, I have experience and work in almost all the conventional disciplinary areas. Moreover, for much of my career I have been on the side, not a regular tenure track faculty member, watching the world. And I have been a fellow at a number of multidisciplinary research centers, so I saw the strongest people in the disciplines up close. And as a regular faculty member, I have been asked to serve on our university’s tenure/promotion committee and read all the dossiers for about six years. The book is lessons learned. And one of the recurrent themes is that while the various disciplines and fields are distinct, there is enormous overlap in their ideas, borrowings from one field to another, and the scholarly issues and academic issues are recurrent. My most important advice is that a truck is coming, you don’t want to be crushed by it, and you don’t have to be. When someone tells me, “what truck?”, I know they are in trouble.
Martin Krieger is Professor of Planning in the Sol Price School of
Public Policy at the University of Southern California and a Fellow of
the American Physical Society. He has taught at Berkeley, Minnesota,
MIT, and Michigan and has served for many years on university promotion
and tenure committees. The second edition of his book Doing Physics was released this month. See his previous guest post for the IU Press blog here.