Pulling G: Human Responses to High and Low Gravity

Springer Science & Business Media
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Performing in a high G environment is extremely demanding on the body: pulling G forces blood to the body’s extremities, putting the pilot, astronaut or driver at risk of G-Induced Lack of Consciousness (G-LOC). In “Pulling G” Erik Seedhouse describes what it feels like to pull 7 G in a fighter plane and the G pressures on the body when driving a Formula 1 car and many other gravity-defying vehicles. The book relates, for the first time, the effects of G in both hyper-gravity and microgravity. It describes the human response to increased and decreased G and the potentially dangerous effects of high G, with particular reference to dynamic injuries sustained in high acceleration environments. “Pulling G” provides an overview of G-related research and the development of intervention methods to mitigate the effects of increased and reduced G. As well as relating the training required to overcome G-forces on the Formula 1 track, Erik Seedhouse looks at the G forces encountered in such G environments as ejection from an aircraft, launch/re-entry, and zero-G. The book also considers how artificial gravity can be used to prevent bone demineralization and to reduce the effects of de-conditioning in astronauts.

Erik Seedhouse is eminently qualified to describe the effects of large accelerations on the body. In addition to being the author of several previously published Springer Praxis books, he has developed astronaut-training protocols and is the training director for Astronauts for Hire (A4H). He is also the Canadian Forces’ High Risk Acceleration Training Officer.
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About the author

Erik Seedhouse is a Norwegian-Canadian suborbital astronaut whose life-long ambition is to work in space. After completing his first degree in Sports Science at Northumbria University, the author joined the legendary 2nd Battalion the Parachute Regiment, the world's most elite airborne regiment. During his time in the "Para's," Erik spent six months in Belize, where he was trained in the art of jungle warfare. Later, he spent several months learning the intricacies of desert warfare on the Akamas Range in Cyprus. He made more than 30 jumps from a Hercules C130 aircraft, performed more than 200 abseils from a helicopter, and fired more light anti-tank weapons than he cares to remember!

Upon returning to the comparatively mundane world of academia, the author embarked upon a master's degree in Medical Science at Sheffield University. He supported his studies by winning prize money in 100-km running races. After placing third in the World 100-km Championships in 1992 and setting the North American 100-km record, the author turned to ultradistance triathlon, winning the World Endurance Triathlon Championships in 1995 and 1996. For good measure, he also won the inaugural World Double Ironman Championships in 1995 and the infamous Decatriathlon, an event requiring competitors to swim 38 km, cycle 1,800 km, and run 422 km. Non-stop!

Returning to academia in 1996, Erik pursued his Ph.D. at the German Space Agency's Institute for Space Medicine. While conducting his Ph.D. studies, he still found time to win Ultraman Hawaii and the European Ultraman Championships as well as completing the Race Across America bike race. Due to his success as the world's leading ultradistance triathlete, Erik was featured in dozens of magazines and television interviews. In 1997, GQ magazine nominated him as the "Fittest Man in the World."

In 1999, Erik decided it was time to get a real job. He retired from being a professional triathlete and started his post-doctoral studies at Vancouver's Simon Fraser University's School of Kinesiology. In 2995, the author worked as an astronaut training consultant for Bigelow Aerospace and wrote Tourists in Space, a training manual for spaceflight participants. He is a Fellow of the British Interplanetary Society and a member of the Space Medical Association. Recently, he was one of the final 30 candidates in the Canadian Space Agency's Astronaut Recruitment Campaign. Erik works as a manned spaceflight consultant, professional speaker, triathlon coach, and author. He is the Training Director for Astronauts for Hire (www.astronauts4hire.org) and completed his suborbital astronaut training in May 2011. He is also Canada's only High Risk Acceleration Training Officer, which is a long-winded way of saying he spins people in Canada's centrifuge.

In addition to being a suborbital astronaut, triathlete, sky-diver, pilot, and author, Erik is an avid mountaineer and is currently pursuing his goal of climbing the Seven Summits. Pulling G is his tenth book. When not writing, he spends as much free time as possible in Kona on the Big Island of Hawaii and at his real home in Sandefjord, Norway. Erik and his wife, Doina, are owned by three rambunctious cats - Jasper, Mini-Mach, and Lava - none of whom has expressed any desire to travel into space but who nevertheless provided invaluable assistant in writing this book (!).

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Additional Information

Publisher
Springer Science & Business Media
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Published on
Sep 26, 2012
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Pages
210
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ISBN
9781461430308
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Best For
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Language
English
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Genres
Medical / Biochemistry
Nature / Sky Observation
Science / Astronomy
Science / Life Sciences / Biochemistry
Science / Life Sciences / Biophysics
Technology & Engineering / Aeronautics & Astronautics
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Content Protection
This content is DRM protected.
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The world’s most populous nation views space as an asset, not only from a technological and commercial perspective, but also from a political and militaristic one. The repercussions of this ideology already extend far beyond Washington. China vs. United States offers a glimpse of future Chinese aspirations in space and the politico-militaristic implications of a looming space race, and explains why an interplanetary spaceship called the Tsien Hsue Shen might one day travel to the outer planets.

Until China successfully launched taikonauts into orbit, China’s space program had attracted little international attention. The book opens with an analysis of the short fifteen-year history of the China National Space Administration and its long list of accomplishments. Chapter 2 assesses Sino-U.S. technological and commercial interests in space and their implications in fuelling a potential space race. The national security objectives of the U.S. and China are examined, showing how their intentions are increasingly leading to the military integration of space technologies. Chapter 3 describes China’s anxieties about U.S. space power, its obsession with national prestige, and how manned spaceflight is viewed as a crucial element to sustain the legitimacy of the Communist Party. China is currently focusing on similar goals to those of NASA’s Constellation Program - lunar and Mars exploration. The following chapter examines the ambitious plans of both nations, and evaluates whether China’s bold goal of landing taikonauts on the Moon by 2020 is matched by the necessary capability.

In Chapter 5 Dr Seedhouse describes the space hardware being developed by the U.S. and China and the strides taken by China in its attempt to match the technological capability of the U.S. The following chapter provides an overview of China’s introductory manned spaceflights and shows how, despite a lack of experience, the Chinese may soon be in a position to challenge the U.S. in a race to the Moon. In Chapter 7, the author discusses how China’s manned space program can boost the country’s international prestige and also examines the notion of manned spaceflight as a risky way to boost national status and the potential implications of a disaster akin to Challenger and Columbia.

Chapter 8 addresses the questions of alliances and cooperation between NASA and ESA and China and Russia, or, alternatively, the U.S. and China pursuing their space ambitions alone. The implications of each way forward in the context of a looming competition in space are considered. Chapter 9 discusses the repercussions of a Chinese space program overtaking NASA and whether the U.S. has the political will to advance its own space program to prevent its position as sole space superpower being usurped. Given the mutual suspicions existing in both countries, it is perhaps inevitable that Washington and Beijing are on a collision course in space. The final chapter describes the implications of such a confrontation and discusses what, if anything, can be done to avert a new space race.

Recent surveys have provided new and updated information into public insights of the nascent space tourism industry. Erik Seedhouse uniquely explores in detail the cutting-edge technologies, spacecraft capabilities, launch vehicles and the training that will define this commercial enterprise and also provides a manual for future suborbital and orbital private space explorers. This overview of the space tourism market is based upon choices the spaceflight participant must make, such as choice of agency, mode and spaceport. A detailed explanation is given of the medical requirements for spaceflight participants, with special reference to potential waiver criteria. Over half of the book is a comprehensive astronaut training/instructional manual that addresses each of the 15 subjects required for suborbital and orbital flight.

Following an Introduction examining the commercial potential for space tourism, Section 1 covers Suborbital Flight. Chapter 1 opens with a description and analysis of the significance of SpaceShipOne. Chapter 2 gives the Suborbital frontrunner profiles, mission architectures and technical aspects from launch to landing while the following chapter details the training and medical requirements for space tourists. Section 2 covers the same aspects for Orbital Flight, including a civilian astronaut training manual, enabling technologies, capabilities and personnel. A description is given of the anticipated on-orbit phases that will introduce the potential spaceflight participant or reader to the capsule, rendezvous, medical support, mission events and de-orbit phase. Section 3 gives a detailed assessment of the future of space tourism based on current technologies, commercial applications, military use and Lunar and Mars missions. Countries without space programs are also included.

Erik Seedhouse provides a much needed, well-rounded understanding of what promises to be the most dynamic, multi-faceted and exciting industry in the world. He shows how seemingly innocuous players are disproving long held beliefs about what can be achieved in space despite the inherent complexities, and why this industry may soon define the new norm in space travel.

'Astronauts For Hire' is a comprehensive and authoritative study of the increasing need for commercial astronauts. Erik Seedhouse provides unique insights into the burgeoning new field of commercial space operation and the individuals who will run these missions.

Section I begins by describing how Astronauts for Hire (A4H) was created in 2010 by Brian Shiro, a highly qualified NASA astronaut candidate, and a group of other astronaut candidates. Erik introduces A4H's vision for opening the space frontier to commercial astronauts and describes the tantalizing science opportunities offered when suborbital and orbital trips become routine.

Section II describes the vehicles astronauts will use. Anticipation is on the rise for the new crop of commercial suborbital and orbital spaceships that will serve the scientific and educational market. These reusable rocket-propelled vehicles are expected to offer quick, routine, and affordable access to the edge of space, along with the capability to carry research and educational crew members. The quick turnaround of these vehicles is central to realizing the profit-making potential of repeated sojourns by astronauts to suborbital and orbital heights.

Section III describes the various types of missions this new corps of astronauts will fly and who will hire them. For example, suborbital flights may be used to do high altitude astronomy, life science experiments, and microgravity physics. This section continues with an examination of the types of missions that will accelerate human expansion outward, to Exploration Class missions through lunar bases, the establishment of interplanetary spaceports, and outposts on the surface of Mars. Along the way it describes the tasks commercial astronauts will perform, ranging from mining asteroids to harvesting helium.
The world’s most populous nation views space as an asset, not only from a technological and commercial perspective, but also from a political and militaristic one. The repercussions of this ideology already extend far beyond Washington. China vs. United States offers a glimpse of future Chinese aspirations in space and the politico-militaristic implications of a looming space race, and explains why an interplanetary spaceship called the Tsien Hsue Shen might one day travel to the outer planets.

Until China successfully launched taikonauts into orbit, China’s space program had attracted little international attention. The book opens with an analysis of the short fifteen-year history of the China National Space Administration and its long list of accomplishments. Chapter 2 assesses Sino-U.S. technological and commercial interests in space and their implications in fuelling a potential space race. The national security objectives of the U.S. and China are examined, showing how their intentions are increasingly leading to the military integration of space technologies. Chapter 3 describes China’s anxieties about U.S. space power, its obsession with national prestige, and how manned spaceflight is viewed as a crucial element to sustain the legitimacy of the Communist Party. China is currently focusing on similar goals to those of NASA’s Constellation Program - lunar and Mars exploration. The following chapter examines the ambitious plans of both nations, and evaluates whether China’s bold goal of landing taikonauts on the Moon by 2020 is matched by the necessary capability.

In Chapter 5 Dr Seedhouse describes the space hardware being developed by the U.S. and China and the strides taken by China in its attempt to match the technological capability of the U.S. The following chapter provides an overview of China’s introductory manned spaceflights and shows how, despite a lack of experience, the Chinese may soon be in a position to challenge the U.S. in a race to the Moon. In Chapter 7, the author discusses how China’s manned space program can boost the country’s international prestige and also examines the notion of manned spaceflight as a risky way to boost national status and the potential implications of a disaster akin to Challenger and Columbia.

Chapter 8 addresses the questions of alliances and cooperation between NASA and ESA and China and Russia, or, alternatively, the U.S. and China pursuing their space ambitions alone. The implications of each way forward in the context of a looming competition in space are considered. Chapter 9 discusses the repercussions of a Chinese space program overtaking NASA and whether the U.S. has the political will to advance its own space program to prevent its position as sole space superpower being usurped. Given the mutual suspicions existing in both countries, it is perhaps inevitable that Washington and Beijing are on a collision course in space. The final chapter describes the implications of such a confrontation and discusses what, if anything, can be done to avert a new space race.

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