Until now alleged eye-witness has been the basis for numerous claims about Auschwitz of a sort which should be open to forensic testing. In fact eye-witness testimony has generally substituted altogether for any serious forensic analysis. Furthermore, the contradictions in many alleged eye-witness testimonials becomes apparent whenever one allows a critical review. This book now fills the gap on the absence of forensic analysis of Auschwitz. Any open-minded person who has previously fallen for the false claims that up 4000, 6000, 10000 or even more human bodies could be entirely disposed using the cremation facilities at Auschwitz within a 24-hour time-span will, after reading this book, say "Never again!"

The book describes the major physical theories of comets in the past two millennia. It demonstrates the evolution of ideas about the nature, position, motion and physical constitution of comets from Aristotle to Whipple. Unlike the available works on the history of comets, which either illustrate relatively short periods in the history of physical cometology or portray a landscape view without adequate details, the present study focuses on details of each theory. It also investigates the interaction between observational and mathematical astronomy, and the physical sciences in defining the properties of comets.