New physics and old physicists…
Thursday, October 30th, 2014At the end of ABC World News one evening last week, Kip Thorne made an appearance. Seems he was a consultant for the new movie Interstellar. The subject, of course, was FTL (faster-than-light) travel, what you need to visit other star systems in subjective times less than several hundreds of human generations. Seemed Thorne was proposing wormholes (Deep Space Nine, anyone?). While most sci-fi authors (including myself) just write a few words of pseudo-scientific technobabble and then get on with the story, I guess the director of Interstellar wanted to put some fancy ribbon around the technobabble. I’m sure Prof. Thorne did a good job.
Generations of grad students have struggled with Einstein’s general theory of relativity. The “classic texts” are Weinberg’s more experimentally grounded tome and the much longer differential geometry-oriented tome written by Misner, Thorne, and Wheeler (yes, that same Thorne). Both were creatively and simply titled Gravitation. Between the two, you had more than enough information to solve any problem on a PhD qualifying exam related to that subject, assuming you had learned the material well, of course. Feynman’s simpler and less mathematical introduction in some of the first editions of the second volume of his famous lectures could be used to get in the mood, so to speak (Feynman did the same with his introduction to quantum mechanics in Vol. 3; with a bit more material, it’s a better introduction than any you’ll find elsewhere).