Paul Nahin
Paul Nahin is a member of the Department of Electrical and Computer Engineering at the University of New Hampshire in Durham, NH. His fields of research include the physics and mathematics of non-causal systems, the history of mathematics, technology and science, and the philosophy of science. He has taught courses in probability, logic design, electromagnetic field theory, image processing, minicomputer engineering, pattern recognition, circuit theory, history of complex numbers, time travel in science and fiction, advanced electronics, nuclear war technology, continuous and discrete systems, and undergraduate laboratory.
Dr. Nahin has also worked in industry, including three years of digital design at Beckman Instruments in Fullerton, CA (designed the programmable simulator of the Gemini manned vehicle), five years of digital and radar system design and analysis at Hughes Aircraft in Fullerton, CA (wrote the radar clutter reduction program for the Swiss Air Defense System), and two years as a military systems analyst for the Institute for Defense Analysis and the Center for Naval Analysis, in Arlington, VA.
He is the author of numerous, popular books on science and mathematics published by Princeton University Press, including An Imaginary Tale: The Story of "i" (the Square Root of Minus One), Time Travel, Dr. Euler's Fabulous Formula: Cures Many Mathematical Ills, and Chases and Escapes: The Mathematics of Pursuit and Evasion.