Word: footprint
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...will send information back to missile-site radar (MSR) equipment at 14 or so areas where long-range Spartan missiles will be poised to intercept enemy vehicles as much as 400 miles from their targets. Each Spartan battery will protect an elliptical area of the nation-in Pentagonese, a "footprint." Present plans call for batteries in each of the overlapping footprints, others in Alaska and Hawaii...
...believed, when the approach radar that controls the rockets became confused by the difference in elevation between the crater bottom and its rim. But the rugged spacecraft quickly proved that it had not been unduly shaken up. Shortly after it landed, it looked down and coolly photographed a nearby "footprint" made on the last bounce by one of its own footpads...
someone's footprint; the fossil-traces...
Many hospitals take a footprint of each new baby in the hope of avoiding mix-ups in identity. But Lieut. Colonel Kenneth S. Shepard saw no reason not to question the practice just because it is S.O.P. At Travis Air Force Base in California he had prints carefully made of the feet of 51 newborn babies, then got the babies in for repeat prints five to six weeks later. He sent the two sets of prints, coded only by number, to experts in criminal fingerprinting...
...result: only ten pairs could be matched, and most of those were too fuzzy to be used in evidence if a mix-up case ever got to court. Dr. Shepard concludes in Pediatrics that footprint-ing of babies is worthless. To avoid confusion he suggests that hospitals stick to a name band put on the baby's wrist in the delivery room...