The passagemaking bible updated to help you live your long-distance voyaging dreams First published in 1975, Robert Beebe's Voyaging Under Power revolutionized long-distance cruising, encouraging powerboaters to enjoy what was once exclusive to sailboats and their crews: crossing oceans to exotic, interesting, and beautiful places in comfort with a minimum of problems and expense. Now power-cruising couple Denis and Mary Umstot, whose interest in power voyaging was ignited by Beebe’s work, have updated Voyaging Under Power for the twenty-first century. The much anticipated Voyaging Under Power, Fourth Edition, includes Beebe's original wisdom and philosophy of passagemaking, as well as his groundbreaking thoughts on vessel stability and fuel monitoring. Fourteen new chapters provide insights into a range of additional topics vital for ocean passages and passagemakers, including: Seaworthiness, stability, and other design concepts Options for stabilizing passagemakers including paravanes, active and passive fins, and antiroll tanks Selecting and understanding the critical systems for long-distance voyaging A decision process for choosing a new boat or analyzing the suitability of a used boat An examination of passagemaking models from Nordhavn, Kadey-Krogen, Seahorse, and Dashew, as well as the designs of Stephen Seaton, Michael Kasten, George Buehler, Dave Gerr, and others Highlights of successful and proven passagemakers of the past, including examples from eleven builders and designers First-hand accounts from passagemakers around the globe, including the Mediterranean, Black Sea, South America, South Pacific, Madagascar, and beyond Tips on understanding and predicting weather and waves and what to do in a storm Understanding offshore safety issues, including how to avoid trouble and cross oceans in comfort Choosing and training crew as well as communication tips for a better cruising experience Preparing for and resolving maintenance problems at sea and in distant anchorages "The list of contributors shows the quality of experience in the pages of this fourth edition. Anyone wanting to join, or at least understand the elements of, the long-distance passagemaking lifestyle will find a great deal of knowledge that is realistic, useful, and timely. You'll keep Voyaging Under Power on your pilothouse bookshelf (or its electronic equivalent) for years to come." -- Bill Parlatore, Founder of PassageMaker Magazine "Captain Beebe applied Navy experience, technical creativity, and an open mind to his self-appointed task of inventing the long-range power cruiser. He embraced ideas that others discarded as readily as he rejected solutions others found indispensable. His path, like all innovators, was the uncommon one and his selfless sharing in Voyaging Under Power literally launched a thousand ships. This Fourth Edition of Beebe's classic draws on new ideas and the accumulated wisdom of today's yacht designers and experienced ocean voyagers to further Beebe's cause and liberate thousands more from the tyranny of dry land." -- Michael Jones, Ocean Traveler, Ship Design Collaborator, and Proud Parent of Google Earth

An overhaul of Robert Beebe's classic Voyaging Under Power, this book features the details of the developments of the intervening years. It features the work of other designers, including George Buehler, Jay Benford, James Krogan, Jeff Leishman, Nils Lucander, Charles Neville, and Steven Seaton.

Underwater Acoustic Modeling and Simulation, Fourth Edition continues to provide the most authoritative overview of currently available propagation, noise, reverberation, and sonar-performance models. This fourth edition of a bestseller discusses the fundamental processes involved in simulating the performance of underwater acoustic systems and emphasizes the importance of applying the proper modeling resources to simulate the behavior of sound in virtual ocean environments. New to the Fourth Edition Extensive new material that addresses recent advances in inverse techniques and marine-mammal protection Problem sets in each chapter Updated and expanded inventories of available models Designed for readers with an understanding of underwater acoustics but who are unfamiliar with the various aspects of modeling, the book includes sufficient mathematical derivations to demonstrate model formulations and provides guidelines for selecting and using the models. Examples of each type of model illustrate model formulations, model assumptions, and algorithm efficiency. Simulation case studies are also included to demonstrate practical applications. Providing a thorough source of information on modeling resources, this book examines the translation of our physical understanding of sound in the sea into mathematical models that simulate acoustic propagation, noise, and reverberation in the ocean. The text shows how these models are used to predict and diagnose the performance of complex sonar systems operating in the undersea environment.

'The definitive work on Pacific crossings' Cruising The Pacific Crossing Guide is a complete reference for anyone contemplating sailing the Pacific. From ideal timing, suitable boats, routes, methods of communication, health and provisioning to seasonal weather, departure and arrival ports, facilities, likely costs and dangers, this comprehensive new edition will both inspire dreamers and instil confidence in those about to depart. Completely updated, expanded and refreshed for the new generation of Pacific cruisers, this is the definitive reference, relied upon by many thousands of cruisers. Part 1 covers thorough preparation for both East-to-West and West-to-East crossings and Part 2 covers Pacific weather patterns, major routes and landfall ports, with useful website links throughout. There are sections on rallies, coral atolls and atoll navigation, the cyclone season and laying up, use of electronic charts, satellite phones versus HF radio, ongoing maintenance, and Pacific festivals. Updated with new charts and photographs, the new 4th edition focuses on ports of entry rather than secondary anchorages, and expands the North Pacific coverage, making it a valuable resource for sailors doing a North Pacific circuit, particularly US and Canadian sailors from the Pacific North.

Since the first edition of this landmark book was published in 1962, Everett Rogers's name has become "virtually synonymous with the study of diffusion of innovations," according to Choice. The second and third editions of Diffusion of Innovations became the standard textbook and reference on diffusion studies. Now, in the fourth edition, Rogers presents the culmination of more than thirty years of research that will set a new standard for analysis and inquiry. The fourth edition is (1) a revision of the theoretical framework and the research evidence supporting this model of diffusion, and (2) a new intellectual venture, in that new concepts and new theoretical viewpoints are introduced. This edition differs from its predecessors in that it takes a much more critical stance in its review and synthesis of 5,000 diffusion publications. During the past thirty years or so, diffusion research has grown to be widely recognized, applied and admired, but it has also been subjected to both constructive and destructive criticism. This criticism is due in large part to the stereotyped and limited ways in which many diffusion scholars have defined the scope and method of their field of study. Rogers analyzes the limitations of previous diffusion studies, showing, for example, that the convergence model, by which participants create and share information to reach a mutual understanding, more accurately describes diffusion in most cases than the linear model. Rogers provides an entirely new set of case examples, from the Balinese Water Temple to Nintendo videogames, that beautifully illustrate his expansive research, as well as a completely revised bibliography covering all relevant diffusion scholarship in the past decade. Most important, he discusses recent research and current topics, including social marketing, forecasting the rate of adoption, technology transfer, and more. This all-inclusive work will be essential reading for scholars and students in the fields of communications, marketing, geography, economic development, political science, sociology, and other related fields for generations to come.

The pleasures and adventures of cruising under sail are amazingly affordable, say Lin and Larry Pardey. But to keep your dream on budget, you have to decide: Are you a cruiser or a consumer? In this book, a logical successor to their Self-Sufficient Sailor and Capable Cruiser, they discuss making your getaway plans, finding a truly affordable boat, keeping your outfitting costs and maintenance time under control, and learning to feel confident as you cruise farther afield. Their comparison of the gear considered necessary by many yachting experts and the gear carried by several cost-conscious cruisers will help you guage wheter you are buying the true necessities or overloading your boat with high-tech items that can break down and steal your sense of confidence offshore. The chapters on getting the most from your cruising funds, the attributes of successful long-term voyagers, how to upgrade your boat with your own hands, plus answers to the then questions most frequently asked by potential cruisers will help you prepare to explore under sail. as Lin and Larry explain, "The decisions you make now will determine if yu'll come back from your cruise feeling more empowered or more enslaved by today's consumer society."

A leading scientist and an expert on human longevity explain how new discoveries in the fields of genomics, biotechnology, and nanotechnology could radically extend the human life expectancy and enhance physical and mental abilities, and introduce a cutting-edge program designed to enhance the immune system and slow the aging process on a cellular level. Reprint.