Word: bacterias
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...Bacteria can now be made radioactive, so that their travels inside living laboratory animals can easily be traced and studied...
This ingenious research trick was announced last week by Biologist J. O. Ely of Philadelphia's Franklin Institute. The old way of finding out where the bacteria went was either by 1) microscopic postmortem examination of tissues or 2) test-tube culture of tissue samples until bacteria appeared in obvious numbers. But hereafter scientists need only feed the bacteria on elements made mildly radioactive in a cyclotron (TIME, June 23), then can trace them through the animal body by the particles of subatomic radiation which they give...
Biologist Ely nurtured a colony of mixed (Escherichia coli and Staphylococcus aureus) bacteria on sodium phosphate whose phosphorus was radioactive. Next he injected them into the tail veins of rats. Few hours later he analyzed the rats' organs for radioactivity, found it greatest in the liver and the lungs, weakest in the brain. Concluded Ely: "The brain, apparently, has an effective means of preventing bacteria from entering it in large numbers." Further significant conclusions will probably appear as work progresses with this new technique...
...subterranean heat and pressure when the flooded, lush, swampy forests were buried deep under crushing layers of sediment (which also turned to rock). This particular idea just isn't so, claims Fuel Technologist Walter Maxmilian Fuchs of Pennsylvania State College. The first step had to be taken by bacteria, for except near volcanoes there was never enough heat and pressure on the carboniferous vegetation to transform plants into coal...
Today China sings not only for pleasure but for many purposes-to combat illiteracy, to improve sanitation. Soldiers are taught to sing drill terms, Army regulations, and, once taught, they learn to read the words. Other popular songs : You must help the soldiers, Flies spread bacteria...