Word: beams
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Dates: during 1970-1979
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...engine is far more economical. With electricity generated by solar panels, it strips electrons off the atoms of vaporized mercury passing through a coffee-can-like chamber, converting them to ions. Expelled at high speeds in a focused beam, the charged particles act like a rocket exhaust, propelling the craft forward. Though its thrust is minuscule and far too feeble to lift payloads from the earth, the ion engine performs efficiently in the vacuum of space. It can function for years because it draws on solar energy and uses fuel sparingly. It can be stopped and restarted countless times...
...performances. Then an infection flared in her left hand and she was forced to enter a local hospital for treatment. When she emerged the next day, her hand was red and swollen to nearly twice its normal size. Despite obvious pain, she competed in one more event, the balance beam, and as the crowd gasped, whipped through two flipflops, bearing all her weight on one hand. Nadia's courageous effort was good for a 9.95. The next day she returned to the hospital and surgeons operated on her hand to drain the infection. Understandably, Nadia looked grim all week...
After the compulsory exercises, the American women were in fourth place. But competing on the beam, three American women went up and three fell off, one of them twice. That did it. The team finished a disappointing sixth. Lamented Coach Linda Metheny Mulvihill: "Everybody tightened up. It was a little scary for the girls." The grande dame of the championships turned out to be Nelli Kim, 22, who saved Soviet honor by winning the all-around title. Her gold-medal performance in the floor exercise was women's gymnastics at its best, a mature blend of dance and acrobatics...
Like MacDonald, Redpath blossoms in several key scenes, especially during his attack on George, which possesses a laser beam intensity...
Cormack took the first step. A native of Johannesburg, South Africa, he became intrigued in 1956 by the difficulty doctors had in obtaining X-ray pictures of the brain. Because the cranium is so thick, they could make an X-ray beam "see" an abnormality only by injecting a patient with tracer dyes or air bubbles. When Cormack immigrated to the U.S. that year (he became an American citizen a decade later), he began exploring the physics of how X rays pass through differing body parts. Dividing this passage into cross-sectional slices, he found he could calculate the absorption...