Word: signallers
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There may be nothing untoward about a prayer muttered in the cockpit of a plane about to plunge headlong into the ocean. But given the history - amplified, and sometimes simplified, by the media and the movies - of terrorists claiming to be inspired by Islam, it could also signal a motive for what is now suspected of having been the criminal downing of EgyptAir Flight 990. The NTSB Tuesday was set to hand over the investigation of the crash to the FBI, believing that the final cockpit conversations on the Boeing 767's voice-data recorder indicate that a crew member...
...crew alive during those final moments? Did the pilots manage to briefly pull the plane out of its dive, or was the aircraft reflexively entering a climb as the near-supersonic dive increased the lift of its wings? And why were the pilots unable to send out a distress signal...
...jerky push-pull motion that characterized the Lauda Air jet's descent in 1991. The radar indicates, however, that Flight 990 nosedived in a straight line in its original descent. And if the pilots faced such a problem, they should have had time to send out a distress signal...
...time is 6 a.m.," the little box chirps. Angela stares at its smooth, blue face long enough for the embedded microlaser to scan the back of her eye. "Ocular pressure, blood pressure and carbon-dioxide levels normal," the alarm clock reports. "But you are dehydrated. I'll signal the refrigerator to fix you an electrolyte cocktail...
Researchers are learning more every day about how the body processes fat. One clue involves the hormone leptin, which is pumped out by fat cells and signals lab mice, at least, not to eat. Unfortunately, as reported last week in the Journal of the American Medical Association, it doesn't seem to work in humans. Researchers are still trying to figure out why not--and how to get around the problem. Another natural substance, called pro-opiomelanocortin (POMC), seems to signal that it's time to stop eating. Mice treated with POMC boosters shed 40% of their excess body weight...