(Also, I have to point out that at least some of the tricks that are described in this article were used by Prof. Tony French when *I* took 8.01 here at MIT in 1974 — pith helmet and all! And these sorts of demonstrations were used throughout the core physics curriculum for the engineers then, too. For example, George Bekefi cooked hot dogs in a microwave generator while using the principles of dispersion and skin depth to calculate the appropriate wavelength for cooking food in 8.03.)
Walter H. G. Lewin, 71, a physics professor, has long had a cult following at M.I.T. And he has now emerged as an international Internet guru, thanks to the global classroom the institute created to spread knowledge through cyberspace.
Professor Lewin’s videotaped physics lectures, free online on the OpenCourseWare of the Massachusetts Institute of Technology, have won him devotees across the country and beyond who stuff his e-mail in-box with praise.