This revealing work examines an approach from ancient astronomy to what was then a particularly important question, namely that of understanding the relationship between the position in the ecliptic and the time it takes for a fixed-length of the ecliptic beginning at that point to rise above the eastern horizon. Schemes known as “rising time schemes” were used to give lengths of the celestial equator corresponding to each of the twelve zodiacal signs which make up the ecliptic. This book investigates the earliest known examples of these schemes which come from Babylonia and date to the mid to late first millennium BC. Making an important contribution to our knowledge of astronomy in the ancient world, this volume includes editions and translations of all of the known Babylonian rising time texts, including several texts that are identified for the first time. Through a close examination of the preserved texts it has been possible to reconstruct the complete Babylonian rising time scheme. This reconstruction is unprecedented in its completeness, and it is also now possible to situate the scheme within a genre of Babylonian astronomy known as schematic astronomy which presents theoretical descriptions of the astronomical phenomena. The unique discoveries and fresh explorations in this book will be of interest to historians of ancient astronomy, scholars of Babylonian history and those investigating the origins of scientific thought.

Special edition of the Federal Register, containing a codification of documents of general applicability and future effect ... with ancillaries.

In the last few years, the world of information networks has undergone significant changes that will revolutionize the future of communications. Data rates have reached the gigabit per second range. Optical fibers have become the transmission medium of choice. Standardization activities have very aggressively produced a set of well established standard for future LANs, MANs and WANs. It has become very difficult for computer and communications professionals to follow these rapidly evolving technologies and standards. High Performance Networks: Technology and Protocols provides a timely technical overview of the start-of-the-art in high performance networking. Chapters cover lightweight protocols, high performance protocol implementation techniques, high speed MAC protocols, optical networks, as well as emerging standards, including ATM, SMDS, B-ISDN, SONET, FCS and HIPPI. Professionals, engineers, and researchers in communications and computers, who need to understand the underlying technologies of high performance (gigabit) networks, will find this volume to be an invaluable reference. The book is also suitable for use as a text for advanced courses on the subject.