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Physical Sciences and Mathematics Commons

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Physics

Robert Katz Publications

1956

Articles 1 - 3 of 3

Full-Text Articles in Physical Sciences and Mathematics

Correlation Between Grades In Engineering Physics And Performance In Engineering Curricula, Donald Hoyt, Louis D. Ellsworth, Robert Katz Dec 1956

Correlation Between Grades In Engineering Physics And Performance In Engineering Curricula, Donald Hoyt, Louis D. Ellsworth, Robert Katz

Robert Katz Publications

A survey of grades in Engineering Physics I at Kansas State College showed that the inner structure of the course was highly consistent. The correlation coefficient between the average of the first three tests and the final grade was about 0.88. More significantly, valuable prognostic data could be obtained from the final grade in the course. The correlation coefficient between the Engineering Physics I grade and the final grade point average of students who completed the course was about 0.83. Only 21% of the students initially failing the course successfully completed an engineering degree, while about 75% of the A, …


United States Patent: X-Ray Grain Inspection Apparatus, Robert Katz, Max Milner, Milford R. Lee Mar 1956

United States Patent: X-Ray Grain Inspection Apparatus, Robert Katz, Max Milner, Milford R. Lee

Robert Katz Publications

This invention relates to an improved apparatus for use in the X-ray inspection of samples of grain or seeds to determine internal insect infestation and other internal physical anomalies. It particularly relates to a novel film cassette and sample holder which helps to produce a clear radiograph of the sample which is held in an orderly alignment, thereby permitting rapid visual inspection and analysis.


Flight Path Of Least Time, Robert Katz Jan 1956

Flight Path Of Least Time, Robert Katz

Robert Katz Publications

A problem which one might assume to be of considerable practical interest, but certainly a problem to arouse the curiosity of the undergraduate student, is the problem of determining the most economical flight path of an airplane in the presence of known winds. In general one must assume that the wind system between source and destination is a complex one involving circulation about several centers with winds of variable speed and direction. The geodesic between source and destination is clearly not the flight path of least time in the presence of winds, nor is a cursory examination of a weather …