Word: traction
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Dates: during 1970-1979
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...acre central city area were cleared for the Expo 74 site. Ramshackle structures on two islands in the Spokane River were also razed, and the polluted river was cleaned up so that now, surging green and foamy through the fair site, it is a major at traction, complete with falls that can be crossed by overhead gondolas...
...nature to withstand a twisting action (torque) when the leg is held rigid by a cleated shoe planted firmly in soft ground. To orthopedists nothing is more predictable than this "football knee." Houston's Dr. Bruce Cameron reasoned that while players must have cleats to ensure good traction, they need to be released from the fixed stance when they are hit by a block or tackled. So he designed shoes with a cleat plate that rotates in the middle of the sole. The player can pivot on the plate while the cleats remain implanted in the sod. Result: many...
...Because doctors have no totally accurate way of judging the strength of bone while it knits, they often immobilize broken limbs longer than necessary. Overtime in traction could soon be eliminated, however. John Jurist, a biophysicist, and Dr. Edmund Markey, an orthopedic surgeon at the University of Wisconsin Medical School, are experimenting with a technique that could enable physicians to determine with precision whether a bone is strong enough to bear weight. So far, their research has focused exclusively on a long leg bone, the tibia, to which a vibrating machine is attached. After the bone is vibrated at various...
...demise marks the end of an era. For nearly a century after Abraham Brower began running horse-cars along New York City's Broadway around 1830, privately owned transit systems throughout the U.S. were the only trains in town. Robber barons made fortunes on them, street traction stocks became a mainstay in widows' portfolios, and the Toonerville Trolley was enshrined on the funny pages. Then ridership began to fall off as automobiles flooded the streets, and local governments and independent transit authorities had to rush in and buy out the lines to keep them running...
...more powerful than ever and perhaps more prone to break down-dozens, worth about $30,000 each, have blown up during trials over the past few weeks. Other boosts to speed are new tires which have no tread. This puts more rubber on the track to provide even better traction. Along with the greater speed, however, comes higher risk. In a practice run last week, Veteran Jim Malloy hit the wall as he came out of a turn at around 175 m.p.h. He died four days later, bringing the fatality toll at Indy since it started...