Word: problem
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Dates: during 1930-1939
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...Father thinks your plan is the soundest approach to the problem. Mother agrees. I talked the whole thing over with her last night. She remarked that the proper settlement of the air mail problem and full support of the Subsistence Homestead Projects should be the first order of business with the Administration...
...hrer has given the problem of the German professors into my hands and I have not the intention of placing it in the hands of any student. . . . The professor is not to be disturbed in his work by at present unnecessary slogans in publications and discussion. I will tend to that...
...Reported was the successful making of x-ray moving pictures with a home camera and 16-mm. film. Drs. William Holmes Stewart, William Joseph Hoffman, and Francis Henshall Ghiselin developed the technique at Manhattan's Lenox Hill Hospital. The heart of the problem was to get a sharp, clear x-ray image on a fluoroscopic screen. The sharpness of the image depended on 1) the brightness of fluorescent material in the screen and 2) the length of time a patient may be subjected to x-ray transillumination. The invention in England of a zinc sulphide preparation which gave...
Thus the bitterling's deceptive behavior in the presence of male and non-gravid female urine was laid at the door of the adrenal glands. Now the investigators have another problem on their hands. They want to know "the possible significance of this [cortical] material in human urine...
Professor Crew attacked the problem with direct simplicity. He made himself a sleeve from a length of automobile tire inner tube, in which he cut a square-inch aperture. Slipping his arm into the sleeve, Professor Crew thrust it into the 40 m.p.h. blast blown through a sunless wind-tunnel ordinarily used for testing model airplanes. During a half-hour exposure to the blast, the square-inch of bare skin "exhibited ''goose-flesh' but at no subsequent time was there the slightest evidence of reddening or chapping of the exposed area of skin," reported Professor Crew...