The Bends

With the invention of compressed air in the 1840s, human divers could enter previously inaccessible deep water environments and engineers could design underwater mines and monumental bridges that had never been possible before. But a painful, sometimes fatal illness--decompression sickness, or the bends--mysteriously afflicted many of those who used compressed air. This book is a wide-ranging history of the wonders compressed air brought about and the suffering its unknown hazards inflicted. John L. Phillips explores the intertwining roles of science, technology, engineering, medicine, and politics in the invention of compressed air, the recognition and identification of decompression sickness, and the hundred-year-long process of learning to understand and treat the bends. The book begins with an overview of the biology and chemistry of respiration and a discussion of the steam engine that could generate compressed air. Drawing on previously unpublished letters, diaries, and notes, Phillips tells the story of early uses of compressed air, first observations of decompression sickness, growing awareness of the bends during construction of the Brooklyn Bridge, and efforts to understand the pathophysiology of the illness. He then considers employee health and safety issues, the science of diving today, and human limits to exploring the ocean deeps. In the history of compressed air and its illnesses, Phillips finds important lessons for dealing with other diseases yet to be confronted in the modern world.

'One of the best accounts ever written of deep-water diving and its staggering, haunting dangers' Robert Kurson, New York Times bestselling author of Shadow Divers Deep underwater lurks a mysterious man-made illness. It has gone by many names over the years – Satan’s disease, diver’s palsy, the chokes – but today, medics call it decompression sickness. You know it as the bends. That’s the devil British diver Martin Robson faces each time he plunges beneath the surface. In the winter of 2012, Robson was part of an expedition to Blue Lake, southern Russia, which sought to find a submerged cave system never seen by the human eye. On the final day of the expedition, as Robson returned from diving deeper into the lake than anyone had before, disaster struck: just seventy-five feet down, he was ambushed by the bends. Robson knew that if he continued up to the surface he would probably die before help arrived. Instead, he sank back into the water, gambling on an underwater practice most doctors believe is a suicidal act. Soon the only hope he had of saving his life would rest in the hands of a dramatic mercy mission organised at the highest levels of the Russian government. Between the Devil and the Deep is the first book to tell the terrifying true story of what it feels like to get the bends, taking you inside the body and mind of a man who suffered the unthinkable. Writer Mark Cowan also explores the grimly fascinating history of decompression sickness, the science behind what causes the disease, and the stories of the forgotten divers who pushed the limits of physical endurance to help find a solution.

• A comprehensive reference book for SOLIDWORKS 2020 • Contains 260 plus standalone tutorials • Starts with a basic overview of SOLIDWORKS 2020 and its new features • Tutorials are written for each topic with new and intermediate users in mind • Includes access to each tutorial’s initial and final state • Contains a chapter introducing you to 3D printing The SOLIDWORKS 2020 Reference Guide is a comprehensive reference book written to assist the beginner to intermediate user of SOLIDWORKS 2020. SOLIDWORKS is an immense software package, and no one book can cover all topics for all users. This book provides a centralized reference location to address many of the tools, features and techniques of SOLIDWORKS 2020. This book covers the following: • System and Document properties • FeatureManagers • PropertyManagers • ConfigurationManagers • RenderManagers • 2D and 3D Sketch tools • Sketch entities • 3D Feature tools • Motion Study • Sheet Metal • Motion Study • SOLIDWORKS Simulation • PhotoView 360 • Pack and Go • 3D PDFs • Intelligent Modeling techniques • 3D printing terminology and more Chapter 1 provides a basic overview of the concepts and terminology used throughout this book using SOLIDWORKS 2020 software. If you are completely new to SOLIDWORKS, you should read Chapter 1 in detail and complete Lesson 1, Lesson 2 and Lesson 3 in the SOLIDWORKS Tutorials. If you are familiar with an earlier release of SOLIDWORKS, you still might want to skim Chapter 1 to become acquainted with some of the commands, menus and features that you have not used; or you can simply jump to any section in any chapter. Each chapter provides detailed PropertyManager information on key topics with individual stand-alone short tutorials to reinforce and demonstrate the functionality and ease of the SOLIDWORKS tool or feature. The book provides access to over 260 models, their solutions and additional support materials. Learn by doing, not just by reading. Formulate the skills to create, modify and edit sketches and solid features. Learn the techniques to reuse features, parts and assemblies through symmetry, patterns, copied components, design tables, configurations and more. The book is designed to complement the Online Tutorials and Online Help contained in SOLIDWORKS 2020. The goal is to illustrate how multiple design situations and systematic steps combine to produce successful designs. The author developed the tutorials by combining his own industry experience with the knowledge of engineers, department managers, professors, vendors and manufacturers. He is directly involved with SOLIDWORKS every day and his responsibilities go far beyond the creation of just a 3D model.

As Norah King surveys her family land in Iowa in 1880, she is acutely aware that it is all she has left, and she will do everything in her power to save it--even if that means marrying a man she hardly knows. Days before her wedding, Norah discovers an injured man on her property. Her sense of duty compels her to take him in and nurse him back to health. Little does she realize just how much this act of kindness will complicate her life and threaten the future she's planned. Norah's care does more than aid Quincy Barnes's recovery--it awakens his heart to possibilities. Penniless and homeless, he knows the most honorable thing he can do is head on down the road and leave Norah to marry her intended. But walking away from the first person to believe in him proves much harder than he imagined. Rachel Fordham invites you to experience the strength and beauty of love forged in the crucible of hardship in this heartwarming story.

How did I get here? He ripped back the zip, his heart pounding as red dust trickled in and landed on his face. He stood, brushing the dust from his eyes, a sense of vertigo launching itself up his spine. One step from the swag and his eyes snapped open. He started to lean into a void. Over a cliff. Fifteen years after college graduation, four friends reconnect to keep a long-ago promise and go on a trip of a lifetime in the Australian Outback. Eliza needs to disconnect from her high-powered fashion job to consider the CEO position she’s just been offered. Lincoln hopes to rekindle a past relationship and escape from another one. Bree looks forward to a fun getaway from home and her deeply buried disappointments. Andy wants to disappear from the mess he’s made of his life—possibly forever. Dropped at a campsite in the middle of nowhere, the friends quickly discover they aren’t the same people they once were, and they begin to confront hard truths about one another—and themselves. Then a bizarre storm sweeps across their camp, scattering them across the desert. Wondering if they are part of some strange escape game, each of the friends meets a guide to help them find exactly what they need: purpose, healing, courage, and redemption. But they’ve already traveled far down the road of life and course-correcting to become the people they were meant to be won’t be easy.