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Books > Professional & Technical > Other technologies > Marine engineering > General

The Cruising Multihull (Paperback, New edition): Chris White The Cruising Multihull (Paperback, New edition)
Chris White
R602 R508 Discovery Miles 5 080 Save R94 (16%) Ships in 7 - 11 working days

Long typecast as the hotrods of the sea--fast but dangerous--modern cruising multihulls actually are among the safest and most comfortable cruising sailboats available. Modern multihulls offer significant advantages over single-hull sailboats: They sail faster, have more living space, theyre more comfortable, more stable, they can sail safely in much shallower water, and, because their stability comes from widely spaced hulls and not from tons of lead hung off the keel, they dont sink. Given the ultimate disaster, which would you choose: A capsized yet habitable boat, floating awash, or a self-righting boat sitting at the bottom of the ocean? And multihulls are fast. A typical weekend cruisers circle of operations might double if he switches to a multihull. A transatlantic voyage might be cut by a third. No less an organization than the U.S. Navy decided that applications requiring an extremely steady platform at sea were best suited to, of all things, a catamaran.

The Cruising Multihull supplies the reader with all the latest information about design, construction, rigs, seamanship, safety, and a point-by-point rebuttal of the accepted wisdom concerning multihull dangers. It will help you decide whether a multihull is right for you; which multihull--cat or tri--is best for your needs; whether you should build one yourself, have one built, or buy one off the rack. And, of course, The Cruising Multihull shows you how to get the most from your boat.

I dont know of a more thorough survey of modern cruising multihulls than this book. For strangers to these boats who want to know more about them, as well as for multihull sailors eager to learn from a capable, articulate designer and sailor with his own point of view, I enthusiastically recommend The Cruising Multihull.--John Rousmaniere

Finally, a multihull voice which does not proselytize. Instead, logic and information pack the pages of Chris Whites . . . The Cruising Multihull.--WoodenBoat

Yacht Design According To Perry - My Boats And What Shaped Them (Hardcover): Robert Perry Yacht Design According To Perry - My Boats And What Shaped Them (Hardcover)
Robert Perry
R1,016 R836 Discovery Miles 8 360 Save R180 (18%) Ships in 7 - 11 working days

A great designer offers you a virtuoso tour through the world of sailboats

Bob Perry initiated the trend toward fast voyaging sailboats with his world-famous Valiant 40, which has been in production longer than any other cruising sailboat in history. But Perry is not only a leading yacht designer--he is also an accomplished wordsmith whose blunt, insightful, irreverent, and always entertaining boat reviews have captivated readers of "Sailing" magazine for 24 years. This book is vintage Perry, a no-holds-barred tour of the world of yacht design through the benchmark boats of his 30-year career.

Springer Handbook of Ocean Engineering (Hardcover, 1st ed. 2017): Manhar R Dhanak, Nikolaos I. Xiros Springer Handbook of Ocean Engineering (Hardcover, 1st ed. 2017)
Manhar R Dhanak, Nikolaos I. Xiros
R8,333 R6,826 Discovery Miles 68 260 Save R1,507 (18%) Ships in 12 - 17 working days

This handbook is the definitive reference for the interdisciplinary field that is ocean engineering. It integrates the coverage of fundamental and applied material and encompasses a diverse spectrum of systems, concepts and operations in the maritime environment, as well as providing a comprehensive update on contemporary, leading-edge ocean technologies. Coverage includes an overview on the fundamentals of ocean science, ocean signals and instrumentation, coastal structures, developments in ocean energy technologies and ocean vehicles and automation. It aims at practitioners in a range of offshore industries and naval establishments as well as academic researchers and graduate students in ocean, coastal, offshore and marine engineering and naval architecture. The Springer Handbook of Ocean Engineering is organized in five parts: Part A: Fundamentals, Part B: Autonomous Ocean Vehicles, Subsystems and Control, Part C: Coastal Design, Part D: Offshore Technologies, Part E: Energy Conversion

Glacially-Triggered Faulting (Hardcover): Holger Steffen, Odleiv Olesen, Raimo Sutinen Glacially-Triggered Faulting (Hardcover)
Holger Steffen, Odleiv Olesen, Raimo Sutinen
R2,384 Discovery Miles 23 840 Ships in 12 - 17 working days

Glacially triggered faulting describes movement of pre-existing faults caused by a combination of tectonic and glacially induced isostatic stresses. The most impressive fault-scarps are found in northern Europe, assumed to be reactivated at the end of the deglaciation. This view has been challenged as new faults have been discovered globally with advanced techniques such as LiDAR, and fault activity dating has shown several phases of reactivation thousands of years after deglaciation ended. This book summarizes the current state-of-the-art research in glacially triggered faulting, discussing the theoretical aspects that explain the presence of glacially induced structures and reviews the geological, geophysical, geodetic and geomorphological investigation methods. Written by a team of international experts, it provides the first global overview of confirmed and proposed glacially induced faults, and provides an outline for modelling these stresses and features. It is a go-to reference for geoscientists and engineers interested in ice sheet-solid Earth interaction.

RYA Diesel Engine Handbook (CD-ROM): Andrew Simpson RYA Diesel Engine Handbook (CD-ROM)
Andrew Simpson
R497 R452 Discovery Miles 4 520 Save R45 (9%) Ships in 10 - 20 working days
Knot Know-How - How to Tie the Right Knot for Every Job (Hardcover): Steve Judkins, Tim Davison Knot Know-How - How to Tie the Right Knot for Every Job (Hardcover)
Steve Judkins, Tim Davison
R239 R200 Discovery Miles 2 000 Save R39 (16%) Ships in 10 - 20 working days

This beautiful full-colour book covers knots, splices and whippings. It begins with the ten knots everyone should know. The other knots are grouped by use so that if, for example, you want to make a loop you have eight knots to choose from. Each stage of each knot is illustrated and its uses, strong points and weak points are highlighted.

Outboard Motors Maintenance and Repair Manual (Paperback): Jean-Luc Pallas Outboard Motors Maintenance and Repair Manual (Paperback)
Jean-Luc Pallas
R525 Discovery Miles 5 250 Ships in 12 - 17 working days

The aim of this book, with its superb step by step photographs and detailed diagrams is to enable every owner to understand the workings of an outboard motor (2 or 4 stroke) and be able to fix it with relative ease. It includes: an explanation of the different parts that make up the engine and how they interact; how fuel is transformed into propulsion; regular maintenance and repair worksheets to help even the most mechanically ignorant to work on their outboard engine with confidence; the most common causes of breakdown; troubleshooting tables to allow you to diagnose and fix the most common engine problems and advice on how to winterize your outboard in one short afternoon. After reading this book, your outboard will no longer be a potential bother to you but an ally for better boating.

The Kill Chain - Defending America in the Future of High-Tech Warfare (Hardcover): Christian Brose The Kill Chain - Defending America in the Future of High-Tech Warfare (Hardcover)
Christian Brose
R606 R507 Discovery Miles 5 070 Save R99 (16%) Ships in 7 - 11 working days
The Ship, the Saint, and the Sailor - The Long Search for the Legendary Kad'yak (Paperback): Bradley G Stevens The Ship, the Saint, and the Sailor - The Long Search for the Legendary Kad'yak (Paperback)
Bradley G Stevens
R393 R338 Discovery Miles 3 380 Save R55 (14%) Ships in 7 - 11 working days

The true story about a shipwreck discovery, exciting explorations, broken alliances, and returning a lost piece of Alaskan history. Since its sinking in 1860 while transporting a valuable cargo of ice, the Kad'yak ship had remained submerged underwater and faded in Alaska's memory, covered by the legend of an experienced but perhaps rusty sailor and a broken promise to a saint. At the time the ship had been under command of the well-recognized Captain Illarion Arkhimandritov, who had sailed in Alaskan waters for years. It seemed a simple task when he was asked to placate superstitions and honor the late Father Herman, or Saint Herman, on his next visit to Kodiak Island. But Arkhimandritov failed to keep his promise, and shortly thereafter the Kad'yak met its demise in the very waters the captain should have been most familiar with-leaving just the mast above the water in the shape of the cross, right in front of the saint's grave. Presumed gone or else destroyed, it wasn't until 143 years later that the Kad'yak was found. In this riveting memoir, scientist Bradley Stevens tells all about the incredible discovery and recovery of the ship-deciphering the sea captain's muddled journal, digging through libraries and other scientists' notes, boating over and around the wreck site in circles. Through careful documentation, interviews, underwater photography, and historical research, Stevens recounts the process of finding the Kad'yak, as well as the tumultuous aftermath of bringing the legendary ship's story to the public-from the formed collaborations to torn partnerships to the legal battles. An important part of Alaska's history told from Stevens's modern-day sea expedition, The Ship, the Saint, and the Sailor reveals one of the oldest known shipwreck sites in Alaska discovered and its continuing story today.

Ocean Waves and Oscillating Systems: Volume 8 - Linear Interactions Including Wave-Energy Extraction (Hardcover, 2nd Revised... Ocean Waves and Oscillating Systems: Volume 8 - Linear Interactions Including Wave-Energy Extraction (Hardcover, 2nd Revised edition)
Johannes Falnes, Adi Kurniawan
R2,059 R1,936 Discovery Miles 19 360 Save R123 (6%) Ships in 12 - 17 working days

Understand the interaction between ocean waves and oscillating systems with this useful new edition. With a focus on linear analysis of low-amplitude waves, you are provided with a thorough understanding of wave interactions, presented to be easily accessible to non-specialist readers. Topics covered include the background mathematics of oscillations, gravity waves on water, the dynamics of wave-body interactions, and the absorption of wave energy by oscillating bodies and oscillating water columns. Featuring new content throughout, including three new chapters on oscillating-body wave energy converters, oscillating water columns and other types of wave energy converters, and wave energy converter arrays, this book is an excellent resource for students, researchers, and engineers who are new to the subject of wave energy conversion, as well as those with more experience.

The Urban Ocean - The Interaction of Cities with Water (Paperback): Alan F Blumberg, Michael S. Bruno The Urban Ocean - The Interaction of Cities with Water (Paperback)
Alan F Blumberg, Michael S. Bruno
R1,187 Discovery Miles 11 870 Ships in 12 - 17 working days

This book introduces the new discipline of urban oceanography, providing a deeper understanding of the physics of the coastal ocean in an urban setting. The authors explore how the coastal ocean impacts with the humans who live, work and play along its shores; and in turn how human activities impact the health and dynamics of the coastal ocean. Fundamental topics covered include: the governing dynamical equations; tidal and circulation processes; variation of salinity and freshwater fluxes; watershed pollutants; observing systems; and climate change. Bridging the gaps between the fields of engineering, physical and social sciences, economics, and policy, this book is for anyone who wishes to learn about the physics, chemistry, and biology of coastal waters. It will support an introductory course on urban oceanography at the advanced undergraduate and graduate level, and will also prove invaluable as a reference text for researchers, professionals, coastal urban planners, and environmental engineers.

Reeds Vol 2: Applied Mechanics for Marine Engineers (Paperback, 7th edition): Paul Anthony Russell Reeds Vol 2: Applied Mechanics for Marine Engineers (Paperback, 7th edition)
Paul Anthony Russell
R1,531 R1,208 Discovery Miles 12 080 Save R323 (21%) Ships in 7 - 11 working days

This book covers the principal topics in applied mechanics for professional trainees studying Merchant Navy Marine Engineering Certificates of Competency (CoC) as well as the core syllabi in applied mechanics for undergraduates studying for BSc, BEng and MEng degrees in marine engineering, naval architecture and other marine technology related programmes. This new edition has been fully updated to reflect the recent changes to the Merchant Navy syllabus and current pathways to a sea-going engineering career, specifically the increased emphasis that has been placed on colleges and universities now responsible for the academic requirements for those studying for a career in marine engineering. In particular this means the book has been updated to include more information about the general principles and applications of the exercises in the practical world of marine engineering. Each chapter has fully worked examples interwoven into the text, with test examples set at the end of each chapter. Other revisions include examples reflecting modern machines and practice, current legislation and current syllabi.

Overnight Code - The Life of Raye Montague, the Woman Who Revolutionized Naval Engineering (Hardcover): Paige Bowers, David... Overnight Code - The Life of Raye Montague, the Woman Who Revolutionized Naval Engineering (Hardcover)
Paige Bowers, David Montague
R788 R675 Discovery Miles 6 750 Save R113 (14%) Ships in 12 - 17 working days
The Elements of Boat Strength: For Builders, Designers, and Owners (Hardcover, Ed): Dave Gerr The Elements of Boat Strength: For Builders, Designers, and Owners (Hardcover, Ed)
Dave Gerr
R757 R611 Discovery Miles 6 110 Save R146 (19%) Ships in 10 - 20 working days

This work is significant. It is the first to include a method of assessing structural strength in the context of the modern marine environment.
--Commander M. C. Cruder, U.S. Coast Guard

Acclaimed author and naval architect Dave Gerr created this unique system of easy-to-use scantling rules and rules-of-thumb for calculating the necessary dimensions, or scantlings, of hulls, decks, and other boat parts, whether built of fiberglass, wood, wood-epoxy composite, steel, or aluminum. In addition to the rules themselves, The Elements of Boat Strength offers their context: an in-depth, plain-English discussion of boatbuilding materials, methods, and practices that will guide you through all aspects of boat construction.

Now you can avoid wading through dense technical engineering manuals or tackling advanced mathematics. The Elements of Boat Strength has all the formulas, tables, illustrations, and charts you need to judge how heavy each piece of your boat should be in order to last and be safe. With this book, an inexpensive scientific calculator, and a pad of paper, youll be able to design and specify all the components necessary to build a sound, long-lasting, rugged vessel.

What reviewers have said about Dave Gerrs books:

Propeller Handbook

By far the best book available on the subject.--Sailing

The best laymans guide weve ever read.--Practical Sailor

Dave Gerr and International Marine made a complicated topic understandable and put it into a handbook that is easy to use.--WoodenBoat

Without doubt the definitive reference for selecting, installing, and understanding boat propellers.--Royal Navy Sailing Association Journal

The Nature of Boats

If you are not nautically obsessed before reading this book, you will most certainly be afterward.--Sailing

Fascinating potpourri of information about todays boats, modern and traditional.--WoodenBoat

Reeds Vol 5: Ship Construction for Marine Engineers (Paperback): Paul Anthony Russell, E.A. Stokoe Reeds Vol 5: Ship Construction for Marine Engineers (Paperback)
Paul Anthony Russell, E.A. Stokoe
R1,089 R861 Discovery Miles 8 610 Save R228 (21%) Ships in 7 - 11 working days

This textbook covers ship construction techniques and methods for all classes of Merchant Navy marine deck and engineering Certificates of Competency (CoC) as well as Undergraduate students studying Naval Architecture and Marine Engineering. It is complementary to Volume 4 (Naval Architecture) and Volume 8 (General Engineering Knowledge). Importantly, this new edition contains up-to-date information on modern shipyards, dry-docking procedures and methods of construction. Extensively illustrated, the book also includes sample examination questions with worked examples answers to aid students in their learning.

Hydrodynamic Control of Wave Energy Devices (Hardcover): Umesh A. Korde, John Ringwood Hydrodynamic Control of Wave Energy Devices (Hardcover)
Umesh A. Korde, John Ringwood
R2,720 Discovery Miles 27 200 Ships in 12 - 17 working days

With this self-contained and comprehensive text, students and researchers will gain a detailed understanding of the fundamental aspects of the hydrodynamic control of wave energy converters. Such control is necessary to maximise energy capture for a given device configuration and plays a major role in efforts to make wave energy economic. Covering a wide range of disciplines, the reader is taken from the mathematical and technical fundamentals, through the main pillars of wave energy hydrodynamic control, right through to state-of-the-art algorithms for hydrodynamic control. The various operating principles of wave energy converters are exposed and the unique aspects of the hydrodynamic control problem highlighted, with a variety of potential solutions discussed. Supporting material on wave forecasting and the interaction of the hydrodynamic control problem with other aspects of wave energy device optimisation, such as device geometry optimisation and optimal device array layout, is also provided.

Oceanic Methane Hydrates - Fundamentals, Technological Innovations, and Sustainability (Paperback): Lin Chen, Sukru Merey Oceanic Methane Hydrates - Fundamentals, Technological Innovations, and Sustainability (Paperback)
Lin Chen, Sukru Merey
R2,899 Discovery Miles 28 990 Ships in 12 - 17 working days

Methane hydrates are still a complicated target for today's oil and gas offshore engineers, particularly the lack of reliable real field test data or obtaining the most recent technology available on the feasibility and challenges surrounding the extraction of methane hydrates. Oceanic Methane Hydrates delivers the solid foundation as well as today's advances and challenges that remain. Starting with the fundamental knowledge on gas hydrates, the authors define the origin, estimations, and known exploration and production methods. Historical and current oil and gas fields and roadmaps containing methane hydrates around the world are also covered to help lay the foundation for the early career engineer. Lab experiments and advancements in numerical reservoir simulations transition the engineer from research to practice with real field-core sampling techniques covered, points on how to choose producible methane hydrate reservoirs, and the importance of emerging technologies. Actual comparable onshore tests from around the world are included to help the engineer gain clarity on field expectations. Rounding out the reference are emerging technologies in all facets of the business including well completion and monitoring, economics aspects to consider, and environmental challenges, particularly methods to reduce the costs of methane hydrate exploration and production techniques. Rounding out a look at future trends, Oceanic Methane Hydrates covers both the basics and advances needed for today's engineers to gain the required knowledge needed to tackle this challenging and exciting future energy source.

Offshore Projects and Engineering Management (Paperback): Mohamed A. El-Reedy Offshore Projects and Engineering Management (Paperback)
Mohamed A. El-Reedy
R2,651 Discovery Miles 26 510 Ships in 12 - 17 working days

Offshore Projects and Engineering Management delivers a critical training tool for engineers on how to prepare cost estimates and understand the most recent management methods. Specific to the oil and gas offshore industry, the reference dives into project economics, interface management and contracts. Methods for analyzing risk, activity calculations and risk response strategies are covered for offshore, FPSO and pipelines. Supported with case studies, detailed discussions, and practical applications, this comprehensive book gives oil and gas managers a management toolbox to extend asset life, reduce costs and minimalize impact to personnel and environment. Oil and gas assets are under constant pressure and engineers and managers need engineering management training and strategies to ensure their operations are safe and cost effective. This book helps manage the ramp up to the management of offshore structures.

Marine Rudders, Hydrofoils and Control Surfaces - Principles, Data, Design and Applications (Paperback, 2nd edition): Anthony... Marine Rudders, Hydrofoils and Control Surfaces - Principles, Data, Design and Applications (Paperback, 2nd edition)
Anthony F. Molland, Stephen R. Turnock
R3,143 Discovery Miles 31 430 Ships in 12 - 17 working days

The coursekeeping and maneuvering requirements for a ship are governed by international maritime law. In assessing and predicting the coursekeeping and maneuvering capabilities of the ship, knowledge is required of the rudder forces necessary to keep a course or facilitate a maneuver. Marine Rudders, Hydrofoils and Control Surfaces: Principles, Data, Design and Applications, Second Edition includes up-to-date data and rudder design techniques which enable the rudder forces to be estimated, together with any interactions due to the hull and propeller. The professional will also face the need to design control surfaces for motion control, such as roll and pitch, for surface vessels and submersibles, and the book contains the necessary techniques and data to carry out these tasks. The new edition also describes the design and application of hydrofoils including shape adaptive design, and their applications including hydrofoil craft, yachts and kite surfing hydrofoils. This book is for practicing naval architects and marine engineers, small craft designers, yacht designers, hydrodynamicists, undergraduate and postgraduate students of naval architecture, ship science and the broader engineering sciences, as well as the broader engineering community involved in development of marine craft that rely on the generation of 'lift' such as control engineers and aerodynamicists.

A Dockyard Apprentice's Story - Hard Graft, Scrapes and Japes on the Long Road to Becoming a Trained Engineer (Paperback):... A Dockyard Apprentice's Story - Hard Graft, Scrapes and Japes on the Long Road to Becoming a Trained Engineer (Paperback)
Robert Smith
R246 Discovery Miles 2 460 Ships in 7 - 11 working days

The apprenticeship at Chatham Dockyard is the finest in the world - if you stick to it, the world's your oyster' Robert Smith's dad told his teenage son. When young Robert started there in 1958, the docks employed 6000 people on a two-mile- long site encompassing hundreds of workshops, offices and storehouses as well as its own police station, fire service, medical centre, technical college and telephone exchange. There were three ship-refitting basins and eight main docks. Yet less than 30 years later Chatham Dockyard had effectively closed, with catastrophic consequences to the local economy. Robert did stick to his apprenticeship, and he has never regretted it. Along with the studying and the hard work there were plenty of good times, with laughter and practical jokes, scrapes with motorbikes and cars, encounters with extraordinary characters and moments of excitement - and frustration - with the opposite sex.

The PS Royal William of Quebec - The First True Transatlantic Steamer (Paperback): Eileen Reid Marcil The PS Royal William of Quebec - The First True Transatlantic Steamer (Paperback)
Eileen Reid Marcil
R695 Discovery Miles 6 950 Ships in 7 - 11 working days

World trade was revolutionized in the 19th Century when ships went from sail to steam. When did the first steamship cross the Atlantic? Who built it? Where? Several ships have claimed that title, but the true answer lies in Canada where steamboats were plying the rivers and lakes since the 19th century. The Paddle Steamer Royal William, built at the Campbell and Black shipyard in the Port of Quebec, steamed across the Atlantic from Pictou, Nova Scotia, to Portsmouth, England in 1833. That was the first transatlantic crossing under steam. Ships from the US and Holland have challenged her right to the title. This book shows that the PS Royal William's claim is valid.

Subsea Optics and Imaging (Hardcover, New): John Watson, Oliver Zielinski Subsea Optics and Imaging (Hardcover, New)
John Watson, Oliver Zielinski
R4,641 Discovery Miles 46 410 Ships in 12 - 17 working days

The use of optical methodology, instrumentation and photonics devices for imaging, vision and optical sensing is of increasing importance in understanding our marine environment. Subsea optics can make an important contribution to the protection and sustainable management of ocean resources and contribute to monitoring the response of marine systems to climate change. This important book provides an authoritative review of key principles, technologies and their applications.
The book is divided into three parts. The first part provides a general introduction to the key concepts in subsea optics and imaging, imaging technologies and the development of ocean optics and colour analysis. Part two reviews the use of subsea optics in environmental analysis. An introduction to the concepts of underwater light fields is followed by an overview of coloured dissolved organic matter (CDOM) and an assessment of nutrients in the water column. This section concludes with discussions of the properties of subsea bioluminescence, harmful algal blooms and their impact and finally an outline of optical techniques for studying suspended sediments, turbulence and mixing in the marine environment. Part three reviews subsea optical systems technologies. A general overview of imaging and visualisation using conventional photography and video leads onto advanced techniques like digital holography, laser line-scanning and range-gated imaging as well as their use in controlled observation platforms or global observation networks. This section also outlines techniques like Raman spectroscopy, hyperspectral sensing and imaging, laser Doppler anemometry (LDA) and particle image velocimetry (PIV), optical fibre sensing and LIDAR systems. Finally, a chapter on fluorescence methodologies brings the volume to a close.
With its distinguished editor and international team of contributors, Subsea optics and imaging is a standard reference for those researching, developing and using subsea optical technologies as well as environmental scientists and agencies concerned with monitoring the marine environment.
Provides an authoritative review of key principles, technologies and their applicationsOutlines the key concepts in subsea optics and imaging, imaging technologies and the development of ocean optics and colour analysisReviews the properties of subsea bioluminescence, harmful algal blooms and their impact

Marine Hydrocarbon Spill Assessments - From Baseline Information through to Decision Support Tools (Paperback): Oleg Makarynskyy Marine Hydrocarbon Spill Assessments - From Baseline Information through to Decision Support Tools (Paperback)
Oleg Makarynskyy
R3,189 Discovery Miles 31 890 Ships in 12 - 17 working days

Marine Hydrocarbon Spill Assessments: From Risk of Spill through to Probabilities Estimates describes the methods used for estimating hydrocarbon spill risks and the potential consequences. Throughout the book, mathematical methodologies and algorithms are included to aid the reader in the solving of applied tasks presented. Marine Hydrocarbon Spill Assessments: From Risk of Spill through to Probabilities Estimates provides a fundamental understanding of the oil properties and processes which determine the persistence and impacts of oils in the marine environment. It informs the reader of the current research in hydrocarbon spill assessments, starting from an assessment of a risk of a spill, and moving on to modelling approaches to impact assessments, laboratory toxicity assessments, field impact assessments and response options, and prevention and contingency planning.

Electrics Companion (Spiral bound): Pat Manley Electrics Companion (Spiral bound)
Pat Manley
R204 R176 Discovery Miles 1 760 Save R28 (14%) Ships in 12 - 17 working days

POWER CONSUMPTION
Everything you 'switch on' consumes electricity, even the panel lights and voltmeter, Add up the amp hours per day of everything you use to see what battery capacity and charging arrangements are necessary. Although the fridge is 'ON' all day, the compressor runs only as demanded by the outside temperature and the thermostat setting. All other consumptions are a guess at how long each item is used per day.

Trapped Under the Sea - One Engineering Marvel, Five Men, and a Disaster Ten Miles Into the Darkness (Paperback): Neil Swidey Trapped Under the Sea - One Engineering Marvel, Five Men, and a Disaster Ten Miles Into the Darkness (Paperback)
Neil Swidey
R380 Discovery Miles 3 800 Ships in 7 - 11 working days

The harrowing story of five men who were sent into a dark, airless, miles-long tunnel, hundreds of feet below the ocean, to do a nearly impossible job--with deadly results
A quarter-century ago, Boston had the dirtiest harbor in America. The city had been dumping sewage into it for generations, coating the seafloor with a layer of "black mayonnaise." Fisheries collapsed, wildlife fled, and locals referred to floating tampon applicators as "beach whistles."
In the 1990s, work began on a state-of-the-art treatment plant and a 10-mile-long tunnel--its endpoint stretching farther from civilization than the earth's deepest ocean trench--to carry waste out of the harbor. With this impressive feat of engineering, Boston was poised to show the country how to rebound from environmental ruin. But when bad decisions and clashing corporations endangered the project, a team of commercial divers was sent on a perilous mission to rescue the stymied cleanup effort. Five divers went in; not all of them came out alive.
Drawing on hundreds of interviews and thousands of documents collected over five years of reporting, award-winning writer Neil Swidey takes us deep into the lives of the divers, engineers, politicians, lawyers, and investigators involved in the tragedy and its aftermath, creating a taut, action-packed narrative. The climax comes just after the hard-partying DJ Gillis and his friend Billy Juse trade assignments as they head into the tunnel, sentencing one of them to death.
An intimate portrait of the wreckage left in the wake of lives lost, the book--which Dennis Lehane calls "extraordinary" and compares with "The Perfect Storm--"is also a morality tale. What is the true cost of these large-scale construction projects, as designers and builders, emboldened by new technology and pressured to address a growing population's rapacious needs, push the limits of the possible? This is a story about human risk--how it is calculated, discounted, and transferred--and the institutional failures that can lead to catastrophe.
Suspenseful yet humane, "Trapped Under the Sea" reminds us that behind every bridge, tower, and tunnel--behind the infrastructure that makes modern life possible--lies unsung bravery and extraordinary sacrifice.

"From the Hardcover edition."

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