Dennis Nuel is a physicist who, during his research, develops a machine that allows him to explore alternate realities, each of which sport some very strange scientific properties.
About David Brin
David Brin is the author of ten previous novels, Sundiver, The Uplift War, Startide Rising, The Practice Effect, The Postman, Heart of the Comet (with Gregory Benford), Earth, Glory Season, Brightness Reef, and Infinity's Shore, as well as the short-story collections The River of Time and Otherness. He has a doctorate in astrophysics and has been a NASA consultant and a physics professor. He lives in southern California, where he is at work on his next novel.