Logikseminariet Stockholm-Uppsala Den 1 oktober, kl. 10.30 - 12.30 i sal 1245 på Polackbacken ger Kaj B. Hansen, Filosofiska institutionen, Uppsala universitet, ett föredrag med titeln From Logical Analysis to Physics: The Case of Special Relativity. ABSTRACT: During the first half of the talk, I point out some logical oddities in the construction of Einstein's Special Theory of Relativity (E-STR). These features lead to consequences which create difficulties for the theory. In particular, E-STR cannot handle rotation. I propose an alternative theory of relativity, Transformation Theory, which avoids these problems. During the second half, we study a few illustrative examples, in the first room a sharpening of the Twin Paradox called the Real Twin Paradox. If time permits, we also consider an application to the GPS system and possibly one more example. NOTE: The seminar will, as far as possible, be kept at a simple and concrete level so that most of the content should be intelligible without any essential previous knowledge of STR. Much of the content of the seminar can be found in two preprints on my homepage: http://www.filosofi.uu.se/personal/kajborgeha.htm