Conclusions
It is realized that these data are not extensive enough to enable one to draw broad conclusions. They do, however, show interesting tendencies and are therefore considered worthy of recording. The more important tendencies shown by this study are as follows: (1) Technically employed students do better scholastic work as evidenced by their grades than do non-technically employed students. (2) Technically employed students receive better salaries than the non-technically employed students. (3) Age is the most important factor in determining a student's earning capacity. (4) Students with good scholastic grades receive higher salaries than students with fair or poor scholastic grades.
New Light Cell May Aid Accurate Television. A new form of photoelectric cell for converting light waves t o electric impulses, using the metal cesium instead of ontassium. mav . Drove of value in television because its response is mare similar t o that of the human eye. The new cell was described by V. Zworykin and E. D. Wilson, of the Westinghouse Electric and Manufacturing Co., a t the joint meeting of the American Physical Society and Optical Society of America, held recently a t Columbia University. It has been known for some time that c ~ i u moffers a number of advantages for use in photoelectric cells, said Mr. Zworykin. The difficulties of handling prevented its use. With the aid of his colleague, he has overcome these difficulties by combining the cesium with magnesium. The magnesium binds the invisible cesium layer to the wall of the glass bulb, and also an electrical connection with it. Its sensitivity is higher than that of other cells. Also, the color t o which it is most sensitive comes very close to that t o which the eye best responds. The eye is most sensitive t o yellow light. So is pure cesium. The cesium-magnesium, as used in the new cell, responds best to bluish green light, while the ordinary potassium cell responds best to deep hlue. The use of such a cell as the new one in television would give an image with color values closely approaching those of the eye.-Science SeNice Life Is Electrical, Scientist Claims. The spark of life is probably a spark of electricity in the opinion of Dr. G. W. Crile of Cleveland, who addressed the American Philosophical Society a t its recent meeting in Philadelphia. The driving energy or vital force, call i t what you will, the thing that makes our works go, is essentially electric in nature, Dr. Crile declared. All living things have an electric potential. At death this falls to zero and remains there. Oxidation is necessary t o maintain this potential in the cells. I t is an electric force that builds up and maintains the form and structure of all living cells. The principal difference between that electric potential which is life and that electric potential present in non-living things like a storage battery is that the living potential is changed spontaneously and according to environment, Dr. Crile said.-Scicncc
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