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Thomas "Tom" Hornbein (born November 6, 1930) is a well-known American mountaineer. Born in St. Louis, Missouri, Hornbein developed an interest in geology as a teenager. His study of geology led to a fascination with mountains. Eventually he also became interested in medicine; he studied and worked as an anesthesiologist. He studied human physiological limits and performance at high altitude. He was Professor and Chairman of the Department of Anesthesiology at the University of Washington School of Medicine in Seattle, Washington from 1978 to 1993. His life was a link of medicine and mountaineering. Hornbein was an early Boulder, CO area climber on the Flatirons. Hornbein and his partner Willi Unsoeld attempted to climb Mount Everest in 1963 as part of the American Everest Expedition. Jim Whittaker and Nawang Gombu Sherpa from this expedition had summitted on May 1, 1963. Hornbein and Unsoeld were the first to attempt an ascent of the daunting West Ridge. Previously, ascents of the mountain had been made only via the South Col and Southeast Ridge or the North Col and Northeast Ridge. Their plan was to climb up the West Ridge and down the Southeast Ridge/South Col route. This would make theirs the first traverse of an 8000-meter peak.〔Unsworth, Walt. (1981) ''Everest''. Allen Lane (Penguin Books) ISBN 0-7139-1108-5. pp 363-392〕 On May 22, 1963 at 6:50 a.m. they left their final camp and started the climb, and even though progress was very slow made it to the summit at 6:15 that night. They found themselves hours behind the generally accepted schedule and after spending 20 minutes at the top they began the descent. Shortly after they started Unsoeld ran out of oxygen. At 9:30 they came upon two other Americans from the same expedition, Barry Bishop and Lute Jerstad. Bishop and Jerstad had reached the summit earlier in the day using the South Col route and by this time were exhausted and nearly out of oxygen. The four climbers joined together on the descent and continued to make very slow progress until they felt it was too dangerous and stopped sometime after midnight.〔Ullman, James Ramsey. (1963) ''Americans on Everest''. J.B. Lippincott, Philadelphia〕 They huddled together until 4:00 a.m. and started down again, meeting expedition members carrying extra tanks of oxygen. They made it to camp to find Unsoeld’s feet hard and frostbitten. Barry Bishop and Lute Jerstad also suffered from frostbite and Bishop and Unsoeld lost toes as a result. Hornbein wrote about this night event in his book "Everest: The West Ridge": "The night was overwhelming empty. The black silhouette of the Lhotse Mountain was lurking there, half to see, half to assume, and below of us. In general there was nothing – simply nothing. We hung in a timeless gap, pained by an intensive cold air – and had the idea not to be able to do anything but to shiver and to wait for the sun arising."〔Hornbein, Thomas F. (July 1998). Everest: The West Ridge. Mountaineers Books.〕 Hornbein named the Hornbein Couloir, a gap/track in the utmost upper part of the north wall, which Hornbein and Unsoeld passed. In his book ''Into Thin Air'', Jon Krakauer writes that "Hornbein's and Unsoeld's ascent was--and continues to be--deservedly hailed as one of the great feats in the annals of mountaineering." In the year 2002 Hornbein, 72 yrs old, was still active as a Professor of Anesthesiology and as a mountaineer. In 2006, he moved from the Seattle area to Estes Park, CO, where he lives with his wife, Kathy Mikesell Hornbein, a retired pediatrician and young adult novelist. They climb regularly in the Colorado Rockies. == Book == * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tom Hornbein」の詳細全文を読む スポンサード リンク
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