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This book considers the behavior of fluids in a low-gravity environment (e.g. spacecraft) with special emphasis on application in PMD (propellant management device) systems. Since PMD designs are not testable on ground and thus completely rely on analytical or numerical concepts, this book treats three different flow problems with analytical, numerical and experimental means. These problems are linked together by the same set of equations and boundary conditions.

This book considers the behavior of fluids in a low-gravity environment (e.g. spacecraft) with special emphasis on application in PMD (propellant management device) systems. Since PMD designs are not testable on ground and thus completely rely on analytical or numerical concepts, this book treats three different flow problems with analytical, numerical and experimental means. These problems are linked together by the same set of equations and boundary conditions.

On October 3, 1990, just a year after the Berlin Wall fell, the German Democratic Republic was absorbed into the Federal Republic of Germany, officially ceasing to exist. What was the GDR and how do we remember it? According to the dominant Western narrative, it was a country that brought neither unity nor justice nor freedom to its citizens. But if so, why does a virtual wall still seem to exist in Germany today between the erstwhile citizens of the GDR and FRG? The GDR very much remains in the public debate, and while political integration is well on its way, the cultural integration of the...

From the preface: This book is a mostly true story about the young Fox River, which was born thousands of years ago but is still alive and well today. Probably millions of words have been written about the Fox River between Green Bay and Portage, Wisconsin, and between Portage and the Wisconsin River via the canal at Portage. The Fox doesn't start at Portage, however. This book is mainly about how the little Fox River performed in its first several miles before it got to Portage, and how it ended up flowing NORTH TWICE, which affected the history of Portage and the state of Wisconsin. Those...