The idea that space and time may have more dimensions than the obvious ones is a fairly old idea in physics, going back to the beginning of the twentieth century. The primary motivation for introducing these dimensions is the quest for unification of fundamental forces. The talk will deal with early attempts based on Einstein's general relativity, as well as more recent incarnations inspired by string theory.
Alan Chodos has been the Associate Executive Officer of the American Physical Society since 2000. From 1980 to 2000 he was a Senior Research Physicist at Yale University. He holds a PhD in Theoretical Physics from Cornell University.
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