For new boating enthusiasts--even if they've been at it awhile--there are scores of burning questions. If one boat has a round bottom and another's is veed, what difference does it make in the way they perform? What are the advantages of a cutter rig over a sloop? Why does one sailor swear by a full keel, while others won't have anything but a fin keel? Why does one powerboat have more flare in its topsides than another? And what is flare? Why do some hull shapes look "right"? How big an engine and propeller will it take to move that powerboat? What elements make a boat safe, or comfortable? Understanding Boat Design has been the place to look for quick, uncomplicated answers since 1971. Founder of the Yacht Design Institute, a highly respected designer for more than 30 years, and a frequent contributor to SAIL, Cruising World, and other magazines, Ted Brewer has again revised his classic primer. This new volume has been greatly expanded and contains information on many aspects of design that were not even thought of twenty years ago. Understanding Boat Design has eased tens of thousands of readers into the complex world of small-craft design. It is the ideal introduction for backyard boatbuilders, students of boat design, or someone looking to buy a first boat. "This tight little book should be required reading."--Soundings "A natural for those embarking on a first purchase, or the amateur builder."--Sailing "One of the cleanest and clearest expositions on the elements of yacht design ever published . . . by a naval architect who knows what he is talking about."--WoodenBoat
Historians commonly designate the High Middle Ages as the era of the "papal monarchy," when the popes of Rome vied with secular rulers for spiritual and temporal supremacy. Indeed, in many ways the story of the papal monarchy encapsulates that of medieval Europe as often remembered: a time before the modern age, when religious authorities openly clashed with emperors, kings, and princes for political mastery of their world, claiming sovereignty over Christendom, the universal community of Christian kingdoms, churches, and peoples. At no point was this conflict more widespread and dramatic than during the papacies of Gregory IX (1227-1241) and Innocent IV (1243-1254). Their struggles with the Hohenstaufen Emperor Frederick II (1212-1250) echoed in the corridors of power and the court of public opinion, ranging from the battlefields of Italy to the streets of Jerusalem. In The Two Powers, Brett Edward Whalen has written a new history of this combative relationship between the thirteenth-century papacy and empire. Countering the dominant trend of modern historiography, which focuses on Frederick instead of the popes, he redirects our attention to the papal side of the historical equation. By doing so, Whalen highlights the ways in which Gregory and Innocent acted politically and publicly, realizing their priestly sovereignty through the networks of communication, performance, and documentary culture that lay at the unique disposal of the Apostolic See. Covering pivotal decades that included the last major crusades, the birth of the Inquisition, and the unexpected invasion of the Mongols, The Two Powers shows how Gregory and Innocent's battles with Frederick shaped the historical destiny of the thirteenth-century papacy and its role in the public realm of medieval Christendom.
Small angle solution scattering (SAS) is increasingly being applied to biological problems. It is a complementary technique that, when applied in appropriate circumstances with carefully structured questions, can provide unique information not available from other techniques. While small angle solution scattering has been around for some time, a confluence of recent developments has dramatically enhanced its power. Intense third generation X-ray sources, low noise detectors, development of new algorithms and the computational power to take advantage of these have all matured, and use of free-electron x-ray laser sources is on the horizon. Whole new classes of experiments and analyses have been created as a result. These include the generation of molecular envelopes, the ability to do time-resolved studies, and the ability to account for structural changes using modelling based on the SAS data. The technical improvements have also reduced the amount of time and material needed to carry out an experiment. Beamtime at synchrotron sources is in demand, workshops on the subject are popular and researchers adopting the technique as part of their repertoire are growing. With these in mind, this book was written to guide structural biologists who may wish to adopt the technique, understand its strengths and weaknesses or just have a general interest in its potential.
An insider's guide to understanding and eliminating accounting fraud How do these high-profile accounting scandals occur and what could have been done to prevent them. Hidden Financial Risk fills that void by examining methods for off balance sheet accounting, with a particular emphasis on special purpose entities (SPE), the accounting ruse of choice at Enron and other beleaguered companies. J. Edward Ketz identifies the incentives for managers to deceive investors and creditors about financial risk and also shows investors how to protect their investments in a world filled with accounting and auditing frauds. J. Edward Ketz, PhD (State College, PA) is MBA Faculty Director and Associate Professor of Accounting at Penn State's Smeal College of Business. He has been cited in the press nearly 300 times since Enron's bankruptcy, including The New York Times, The Wall Street Journal, and The Washington Post.. He has a regular column in Accounting Today.
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