Word: thermal
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...location of the tracker, even if the ping were generated from a third source, such as a buoy towed behind the sub or dangled in the water by a helicopter. The alternative is nonacoustic detection. For example, researchers are exploring ways of sensing a submarine's magnetic field, its thermal radiation or the turbulence in its wake. Some are even studying the bio- luminescence and the scattering of fish caused by a sub's passage. Another approach is radar imaging from orbiting satellites, which may be able to register the minute elevation of the ocean's surface resulting from...
Although a confirmation slip informs senders that their document has been spit out of another fax, they have no way of knowing their messages haven't been stacked in ever-growing piles of thermal paper--or simply thrown...
...easiest thing in the world to work with the Stones, and for me to work with Mick," Keith says. "Mick and I work together perfectly. It's when we're not working that we have problems." If Steel Wheels does not have the full surprise and thermal energy of a Stones classic like Let It Bleed or Exile on Main Street, at least it holds on to a sense of continuity. No advances maybe, but as another great songwriter put it, no retreat either...
...tool has evolved that should help them in their quest -- helioseismology, which, simply stated, involves "listening" to the interior of the sun as it bubbles, gurgles and swirls. The entire outer third of the sun is a seething ocean of gas, constantly churned by thermal convection. And convection, says astronomer John Harvey of the National Solar Observatory at Kitt Peak, "is a very noisy process. So the sun makes noise, just as a pot of water does as it boils...
...chain link fencing and peer past the scaffolding and sandbags are rewarded with a wholly different, riveting view of the famous piazza: underground. There, some 30 Italian archaeologists are digging through a cross section of history from the Bronze Age to medieval times. Exposed now is a Roman thermal bath with its frigidarium, or cold room, almost intact. And smack on top of that are the remnants of a tower dating from the 13th century era of the Ghibellines. With 86,000 sq. ft. of past at his feet, archaeologist Giuliano De Marinis, director of the dig, is exultant: "Piazza...