Scuba

Scuba

Author: James A. Lapenta

Publisher: Createspace Independent Publishing Platform

Published: 2014-02-06

Total Pages: 0

ISBN-13: 9781494900250

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SCUBA is a fun, relaxing, educational, interesting, and -- if approached properly -- safe activity, it is nonetheless a sport that has risks. SCUBA diving is in fact an extreme sport that can injure or even kill very quickly, and in some very nasty ways. What we are doing is entering an alien environment that is normally hostile to human life. We cannot breathe in water without some kind of mechanical assistance. These are facts and the details should be covered in every Open Water (OW) class. All too often in today's society, however, people do not want to take the time to properly prepare and get the education to safely take on new tasks. Some agencies appear to have responded to this by developing training programs that turn out high numbers of certified divers in shorter time frames, necessitating the reduction of time spent on what I consider to be some necessary basic skills. While this has resulted in great numbers of new divers entering the water, it has not resulted in many of those divers staying in the water. New divers are often given just enough training to enable them to dive in the most benign conditions under close supervision. Even then, there are still those who find out their initial training was just not adequate. It is at this point that they either make the decision to get more training or they leave the sport. The latter happens all too often. The former, when it does happen, does not always occur for the right reasons. Students should return to training to expand their diving and learn new skills; they should not have to return for new training just to be able to enjoy the sport safely. To require students to come back for basic information is something I find very troubling, and in some cases, has actually cost divers their lives. A lack of rescue instruction has resulted in a number of diver deaths when buddies did not know how to drop weights, support a diver at the surface, or even stay in contact with their buddy. This is another area frequently talked about, but all too often not actually put into practice. The concept of always diving with a buddy and just what that means in the "real world" is often given too little attention. Unfortunately, it is impossible to foresee every conceivable situation that can arise, but there are many basic issues that can be covered. The following chapters will hopefully address much of what is being overlooked or delayed in many programs as they exist today. It is my hope that this information also finds its way into the hands of those who have not yet begun the training process. I have included a chapter on how to select an instructor based on the quality of instruction and the content of the course. In some cases, these classes may cost more than the less comprehensive courses also available, but usually they do not. In fact, when you consider the additional skills and education gained from a more comprehensive course, you will find that you have received much more value for each dollar spent. In addition, you gain priceless benefits in the form of greater confidence, enjoyment, skills, and -- most importantly -- safety. Enjoy and dive safe


Scuba Diving Safety

Scuba Diving Safety

Author: Dan Orr

Publisher: Human Kinetics Publishers

Published: 2007

Total Pages: 196

ISBN-13: 9780736052511

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The beautiful locales, exotic plant and sea life, and relaxing environs of dive locations are even more peaceful when you are armed with the expertise and skill to stay safe in any situation. With self-rescues, buddy rescues, open-water resuscitation, and towing techniques, Scuba Diving Safety will become your most valuable diving companion. Covering a full range of underwater environments, as well as dangerous marine life, entanglements, and equipment failures, this vital resource is an essential reference for every underwater enthusiast. Do not rely on someone else--or chance--to keep you safe. Let Scuba Diving Safety help you prepare for the unexpected and provide the confidence to enjoy your underwater adventures to the fullest.


Wearable Robots

Wearable Robots

Author: José L. Pons

Publisher: John Wiley & Sons

Published: 2008-04-15

Total Pages: 358

ISBN-13: 0470987650

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A wearable robot is a mechatronic system that is designed around the shape and function of the human body, with segments and joints corresponding to those of the person it is externally coupled with. Teleoperation and power amplification were the first applications, but after recent technological advances the range of application fields has widened. Increasing recognition from the scientific community means that this technology is now employed in telemanipulation, man-amplification, neuromotor control research and rehabilitation, and to assist with impaired human motor control. Logical in structure and original in its global orientation, this volume gives a full overview of wearable robotics, providing the reader with a complete understanding of the key applications and technologies suitable for its development. The main topics are demonstrated through two detailed case studies; one on a lower limb active orthosis for a human leg, and one on a wearable robot that suppresses upper limb tremor. These examples highlight the difficulties and potentialities in this area of technology, illustrating how design decisions should be made based on these. As well as discussing the cognitive interaction between human and robot, this comprehensive text also covers: the mechanics of the wearable robot and it’s biomechanical interaction with the user, including state-of-the-art technologies that enable sensory and motor interaction between human (biological) and wearable artificial (mechatronic) systems; the basis for bioinspiration and biomimetism, general rules for the development of biologically-inspired designs, and how these could serve recursively as biological models to explain biological systems; the study on the development of networks for wearable robotics. Wearable Robotics: Biomechatronic Exoskeletons will appeal to lecturers, senior undergraduate students, postgraduates and other researchers of medical, electrical and bio engineering who are interested in the area of assistive robotics. Active system developers in this sector of the engineering industry will also find it an informative and welcome resource.


Diving Pioneers and Innovators

Diving Pioneers and Innovators

Author: Bret Gilliam

Publisher:

Published: 2007

Total Pages: 494

ISBN-13:

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Manages to combine humour, adventure, tragedy, triumph, heroism, and even some forays into the risque while chronicling the careers of 20 personalities that helped make diving. This book presents the personal lives of this diving's heroes. It is illustrated with photographs that capture each interviewee throughout their diving careers.


Dive Log Book

Dive Log Book

Author: Dive Logbook Scuba Diving Log Book

Publisher: Independently Published

Published: 2020-01-08

Total Pages: 101

ISBN-13: 9781657507869

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Dive Logbook : Training, Certification and Fun 100 dives to record : Dive No., Date, Location, Time in/out, Dive Time, Cumulative Dive Time, Temperature Air/Surface/Bottom, Visibility, Depth, Bar Start/End, Bottom Time, Safety Stop, Air/EAN %, RNT+ABT=TBT, Suit, Weight, Conditions, Notes, Signature and Stamp. practical dimensions : 6 x 9 in glossy softbound cover, high quality high quality paper This Dive Logbook is a perfect gift for male, female, beginner to professionnal divers.


Columbia Crew Survival Investigation Report

Columbia Crew Survival Investigation Report

Author: Nasa

Publisher: PDQ Press

Published: 2009

Total Pages: 400

ISBN-13: 9780979828898

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NASA commissioned the Columbia Accident Investigation Board (CAIB) to conduct a thorough review of both the technical and the organizational causes of the loss of the Space Shuttle Columbia and her crew on February 1, 2003. The accident investigation that followed determined that a large piece of insulating foam from Columbia's external tank (ET) had come off during ascent and struck the leading edge of the left wing, causing critical damage. The damage was undetected during the mission. The Columbia accident was not survivable. After the Columbia Accident Investigation Board (CAIB) investigation regarding the cause of the accident was completed, further consideration produced the question of whether there were lessons to be learned about how to improve crew survival in the future. This investigation was performed with the belief that a comprehensive, respectful investigation could provide knowledge that can protect future crews in the worldwide community of human space flight. Additionally, in the course of the investigation, several areas of research were identified that could improve our understanding of both nominal space flight and future spacecraft accidents. This report is the first comprehensive, publicly available accident investigation report addressing crew survival for a human spacecraft mishap, and it provides key information for future crew survival investigations. The results of this investigation are intended to add meaning to the sacrifice of the crew's lives by making space flight safer for all future generations.