Word: infra
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After fitting a 24-inch telescope with a sensitive infra-red detector, the Caltech scientists trained it on the comet for 19 days during its passage around the sun. Their first temperature measurement-700° F.-was made when Ikeya-Seki came within 45 million miles of the sun and heated up enough for its infra-red emissions to be picked up on earth. As the comet raced closer to the sun, its temperature climbed gradually, reaching 1,200° F. about 20 million miles from the solar surface. Then the comet's emissions were blotted...
...search out targets for the bombers to hit, the Recce planes are crammed with cameras, infra-red detectors, special radar, and secret electronic devices that can jam enemy radar. With special heat-sensor equipment, they can pinpoint tiny cooking fires that betray the presence of the Viet Cong. "We can't kill them all, but we can make sure Charlie has to eat cold rice," says an Air Force targeting officer. With powerful 4,500,000-candle-power flash cartridges, Recce planes can turn night into day to photograph enemy convoys sneaking down the Ho Chi Minh trail...
...five months of this year, southbound enemy truck traffic has doubled over that during the same 1965 period, while delivery of Red supplies south of the 17th parallel has jumped 150% and of troops 120%, to an estimated 4,500 men a month. As evidence, McNamara displayed a recent infra-red reconnaissance photograph of a 51-truck convoy creeping bumper-to-bumper at night down a North Vietnamese section of the trail. Said he: "Some of these routes are new, some have been widened and upgraded for all-weather truck use. Bypasses have been built, and bamboo-trellised canopies rigged...
...streets. He keeps his private life so quiet that no one is sure where he lives. Dej had a chain of villas-one in Sinaia, one in Predeal, another in Mamaia, and one replete with private movie theater, a television screen that covered a wall, electronic door openers and infra-red radiators. Hard-working and humorless, clever but cautious, Ceausescu is infra-Red all by himself...
...held sextant to sight stars setting on the earth's horizon, they were able to determine their position in space and demonstrate that astronauts can navigate without the aid of a computer. In an experiment for the Defense Department, they tracked the payload of a Minuteman missile, took infra-red measurements of the plasma sheath of ionized air that was created when it plunged back into the atmosphere below them. Another experiment, communication with earth through a laser beam, was only partially successful. After several fruitless attempts, the astronauts spotted the blue-green beam from a laser-transmitting station...