Clifford SwartzClifford Swartz is a professor emeritus of physics at State University of New York, Stony Brook. He is the former editor of The Physics Teacher and has written numerous physics texts for students from kindergarten to graduate level. He was therecipient in 2007 of the Melba Newell Phillips Award and in 1987 of the Oersted Medal, the most prestigious award of the American Association of Physics Teachers. He is the author of Back-of-the-Envelope Physics (Johns Hopkins University Press, 2003). Read More Read Less