Scott Hippensteel, author or Sand, Science and the Civil War: Sedimentary Geology and Combat Gerry's Monologue - This is Gerry Prokopowicz, with Civil War Talk Radio, Members of the Civil War Talk Radio community, you and me, we are generally well read on the subject of Civil War battles. We usually know where they happened, and who won. What the tactics and weapons were, what the key terrain features were, but I didn't know and you might not either, because what kind of rock lies under the surface of the Civil War battlefield? What happened millions of years earlier to shape that landform? And how the geology of a historic site can contain clues about what happened there 160 years ago, someone who does know all that is professor of Earth Sciences, Scott Hippensteel, author of 'Sand, Science and the Civil War: Sedimentary Geology and Combat.' We'll talk with him tonight on Civil War Talk Radio.