Word: tracers
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Sure enough, Dr. Kunz was able to grow S. cubana from the dye capsules. Mass General notified state and federal health authorities and substituted a black carbon marker for carmine red as an intestinal tracer. Cases of cubana salmonellosis in three other states were traced to carmine red, and supplies were called in. So far, so good. But authorities have been checking other places for carmine red, knowing that it is a favorite coloring in candy, chewing gum, ice cream, cough syrups and drugs. Manufacturers like to use it because of a legal quirk: being a natural rather than...
...pulls out 60% of downed airmen, excluding those who fall directly into populous or heavily garrisoned zones. Rescues are effected by a combination of coordination, technology and guts. Each airman is equipped with a $2,400 survival kit containing, among other things, 400 ft. of nylon rope, a tracer pistol, flares, food, water, a raft and a desalting kit. The key gadget is a small mercury-battery radio that is both a voice transceiver and a beeper providing a radio fix for search and rescue planes to home...
...OTTO PIENE, 37, was a teen-age flak gunner in Germany during World War II. He vividly recalls the incredible light patterns of tracers and the bursts of bombs. Says he: "Fright inspires inventiveness and gives birth to giant monsters." In 1950 he helped found the Group Zero in Düsseldorf, which investigated the effects of light. On his own, he designed "light ballets" like sweeping projections of tracer beams. "I want to demonstrate that light is a source of life which has to be continuously rediscovered, to show its expansion as a phenomenal event." His Fixed Star...
During the bloody withdrawal from the Yalu River, Johnson ordered his men to pile up stacks of hay in the fields before their line of fire. When bugle-blowing North Koreans swept down in a night attack, Johnson's machine-gunners set fire to the haystacks with tracer bullets. In the heat, glare and confusion, the attackers were wiped...
...wells and the sea, building up a barrier against seawater intrusion. Since agriculture is Israel's heaviest user of water, Israeli scientists are systematically searching for the answer to a question that has plagued farmers throughout history: How much water does each crop actually need? Using radioactive tracer materials, American-born Soil Physicist Daniel Hillel is keeping track of irrigation water as it enters the fields and as it escapes through evaporation or plant transpiration. He radiates neutrons into the soil near plant roots and measures the results: the more water in the soil, the slower the neutrons move...