Word: scanning
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...telephone. If Travelhost Network, a travel-service company based in Dallas, has its way, soon no hotel room will be complete without a computer. When Travelhost's compact Quazon computer terminals are hooked up to a television and telephone, guests can check airline schedules and make reservations, scan U.P.I, reports for the latest news and stock prices, catch the sports scores or play electronic games. Business travelers can read messages or documents transmitted from their offices...
...charm of being air bone may not be clear to those who scan the sky only for unidentified flying objects. Why fly? Por Russell, "it's an obsession--more addicting than any drag I know...
This personal world of housecalls and stethoscopes in black bags is gone. "Instead of spending forty-five minutes listening to the chest and palpating the abdomen, the doctor can sign a slip which sends the patient off to the X-ray department for a CT scan," Thomas observes, continuing later that "the doctor can set himself, if he likes, at a distance, remote from the patient and the family, never touching anyone beyond a perfunctory handshake as the first and only contact...
Landsat's electronic eyes scan patches of the earth's surface 115 miles square, one after another. (It takes 30,000 images to show the entire planet.) The satellite views each square in different colors, some seven different wave lengths in all, including several "invisible" infra-red frequencies. The images are sent as a stream of radio signals to earth stations, where they are assembled by a computer into full pictures. In many instances, scientists arbitrarily choose the final colors to represent a specific condition; for example, blazing red might indicate healthy crops, while black would mean ailing...
...Columbia in November 1981. That mission had to be cut from 124 hr. to 54 hr. because of a faulty fuel cell, but before aborting the flight, the astronauts were able to complete an experiment with the ship's radar equipment. They took a 50-km-wide scan of the Sahara from the shuttle. Radar waves generally penetrate only a few centimeters of the earth, since the beams are dissipated by moisture in the surface of land. But in the dry Sahara, the radar waves were able to pierce to depths of five meters, reflecting from bedrock...