Word: infra
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...carrying teams of specially trained state trooper SWAT teams. At the direction of Attorney General Bell, who stayed in close contact with the President, the FBI took charge of the case, and 75 agents moved quickly into the area. The FBI ordered in a special helicopter armed with an infra-red sensing device; it began roaming the area, hunting for minute changes in temperature on the forest floor that might be caused by the presence of men. In all, five helicopters flew over the area, occasionally whirring down to land on the baseball field outside the prison that the convicts...
Because of its rapid rate of growth and increased blood supply, a tumor is hotter than normal tissue and hence gives off more radiant energy. Thermography, or heat scanning, concentrates on looking for infra-red radiation to find tumors. But such waves are rapidly absorbed by bodily tissue; thus tumors that lie any distance below the skin's surface cannot be readily picked up by infra-red sensors. By contrast, microwaves-which are much longer and more penetrating-can locate tumors up to 10 cm. (4 in.) below the surface...
About 70% accurate, the gadget is admittedly less precise than mammography (90%) and only on a par statistically with infra-red thermography. But since there is no radiation risk and no need for a skilled X-ray interpreter to make an initial judgment, Sadowsky points out, the microwave detector could at the very least be used for prescreening women-especially those under 35 who are ordinarily not encouraged to have mammograms unless they have a family history of breast cancer or symptoms of the disease...
...also got what they call "smart" weapons; I guess I ought to say "smarter" weapons. There's the Shillelagh missile that's fired from a 152-mm. gun and is guided by an infra-red beam. There are a couple of others-a type of Maverick and the Copperhead-that are tracked to their targets by laser beams. Real Flash Gordon stuff! But don't worry about me getting vaporized by a laser or anything like that...
...Pentagon gets enough intelligence data on tape and film every day to equal 40 complete Encyclopaedia Britannicas plus a couple of Gone With the Winds. A lot of the information is picked up by those spy-in-the-sky satellites. They take clear pictures in color, black and white, infra-red or ultraviolet. They also eavesdrop on radio and microwave communications. This is called "ferreting," and we have 6,000 people who do nothing but try to interpret voices and microwave stuff from the other side. If you think that's a lot, the Soviets are supposed to have...