Word: insing
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How could KAL Flight 007 stray so far off its proper course? The Boeing 747 was equipped with three Inertial Navigation Systems (INS), designed to keep the jet on its scheduled flight path and to back one another up in case of malfunctions. Their performance record is excellent: a new...
The initial information fed into the Korean airliner's INS computers at Anchorage, where the flight had refueled, was correct. Flight 007 hit its first five way points as planned. But after Neeva, Flight 007 apparently began to stray.
One possible explanation is that the crew fed the INS computers some erroneous information while aloft. The INS can store only nine sets of coordinates; there were twelve way points along Flight 007's route to Seoul, which means that new sets of latitudes and longitudes had to be...
In Phoenix, metal lawn signs in front of homes warn burglars that gun-wielding guards will greet them if they enter. In Cleveland, a school for canines turns tail-wagging family pooches into snarling guard dogs. In Los Angeles, uniformed attendants at a bunker-like command post study screens and...
A typical electronic surveillance system costs about $3,000. For that the homeowner gets a network of sensors that can detect break-ins. An intruder sets off a piercingly loud alarm and triggers a signal in the central monitoring station or at a police station. Charges for the monitoring service...