Strasbourg Cathedral’s astronomical clock is one of the most famous monuments to Time in the world. No other clock has been described and appreciated so often and in such a myriad of ways. There were three clocks built consecutively within the cathedral: the earlier fourteenth century clock has left little trace; a second clock was realized in 1570-1574; while the nineteenth century clock began as a proposal for repairs, but was intended by its maker as a replacement clock. This book gives a detailed outline of the artistic and technical components of the second clock, much of which survives, and it describes the astronomical indications and its underlying conceptual framework. The author has discovered a hitherto disregarded contemporary statement that the clock displays four ways of determining the ascendant as described by Ptolemy. He also shows that the Strasbourg clock is the result of a highly original reception of the architectural theory of Vitruvius and other mathematical and mechanical texts of Late Antiquity. Revised and updated translation from the German edition Die Straßburger Münsteruhr: Funktion und Bedeutung eines Kosmos-Modells des 16. Jahrhunderts. Published by GNT-Verlag in 1993. See inside this book.

Book 1 of The Time Corps Chronicles Medical student Felicia Sanchez is only trying to help an injured man when she slips through a time rip and into 19th century New Orleans, one very different than the one she knows from history books. The only person who can get her home is Professor Seamus Connor, a former convict seeking a quiet life of obscurity. But even the "mad Irishman" knows that recreating a freak accident is next to impossible. With the help of a local street urchin, they discover that their problems run deeper than solely getting Felicia back to her own time. The three of them must unravel the secrets of a steam engine that operates upon a scientific impossibility and the mysteries of a grand cathedral at the center of town, where clockwork automatons perform for rapt audiences. But can a convict, a guttersnipe and an accidental time traveler prevent the destruction of a city and the death of thousands? Others are watching, and Felicia may not be the only time traveler in New Orleans.

Contains 250 black and white photographs of clocks, followed by a List of American Clockmakers and a List of Foreign Clockmakers. Indexed. Note publication date of 1924.