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About Oregon daily emerald. (Eugene, Or.) 1920-2012 | View Entire Issue (Jan. 20, 1922)
PROF. MILNE PRESENTS PAPER TO SCIENCE CLUB Improved Method of Vibration Determination Discussed How many vibrations are there in the fiftieth wave of a vibrating tuning fork! Or, how may the designer of a water power plant determine the amount of resistance or pressure in the various tubes and pipes so as to regu late the power which he desires to use? These and many other questions of similar nature are answered by Prof. "W. E. Milne, of the mathematics de partment, in his paper entitled “Damped Oscillations,” which he re cently read before the Science club. By means of mathematical formulae Prof. Milne illustrates in his paper how the magnitude of damped, or deadened vibrations may be obtained. The pa per is the result of recent research work in the field of damped hydraulic oscil lation, a field in which, according to Prof. Milne, no thorough investigation has previously been made. Heretofore the power of vibrations had only been reckoned to the first power, but Prof Milne goes beyond this and illustrates how the power may be computed to any given amplitude of a vibrating body. Compares Various Solutions Commenting on his work, Prof. Milne said, “In most investigations of damped vibrations, thfe damping iB, assumed to be proportional to the first power of the velocity. This assumption not only permits an easy and elegant mathema tical solution of the problem, but is also frequently in close accord with experimental evidence. There are, how ever, a number of important problems in physics and engineering where it is necessary to employ a power of veloc ity higher than the first. In some of these problems the first power enters explicitly, so that to include all cases the differential equation must be writ ten. “The purpose of this paper is to pre sent some of the salient characteris tics of the solutions of equations and to compare them with well-known solu tions.” Hopes to Publish Soon Prof. Milne shows in his paper that if motion could be run backward for time there is a point where there is no oscillation. Taking this as a basis he illustrates how it is possible to deter mine by the number of ocillations what the given power of any given amplitude will be. Thus one would be able to de termine how big the oscillation would be at the one hundred-twenty-fifth wave of a tuning fork or the power of any designated v^ave The discoveries have much practical application in the use and regulation of surge towers or water power plants in fengineering. Prof. Milne is putting the finishing touches on his work and hopes to have it ready for publication soon. AMERICAN TRAMP POET (Continued from page one) Quill and other societies of the type. A small admission is to be charged to defray the expenses of the lecture and contribute perhaps to the poet’s outfit should he consider one of the conven tional Bort necessary to his appearance j before a college audience. The best known of Lindsay’s works have been placed on the main reading room desk at the library. Among them are “The Chinese Nightengale,” “The Congo,” “General Booth Enters Heav en,” “In Praise of Johnny Appleseed” (his latest), and a mass of material re lating to him There is more to Vachel Lindsay than his exotic exterior. It is the rugged ness and almost religious ferver of his characteristic verses which have won for him the very great praise which is nowhere disputed and has only recently been inflated by an almost triumphal visit to England. He has many fads and fancies. One of which is all-im portant but has received over emphasis in the past is his attempt to remove poetry from the library reading room and transport it back to its original place around the fireplace to be intoned or chanted. In the past ha has so fashioned his verses to lend themselves to his own peculiar way of rendering them. Prom “The Congo" the follow ing colorful lines are particularly il lustrative of this tendency: "Pat black bucks in a wine-barrel room, Barrel-house Kings, with feet unstable, Sagged and reeled and pounded on the table— Pounded on the table Beat an empty barrel with the handle of the broom, Hard as they were able, Boom, Boom, Boom.” It is said that Lindsay is coming to I be a bit ashamed of his past as a de- ! claimer and a chanter and very seldom \ does it any more. Perhaps he may be prevailed upon to come back to it here in Villard on the seventh. The choic- \ est bit of all is his “Kallvope Yell” ! which should fit in well with the j acoustics in Vilard hall. Here is part of it which indicates something of the sheer abandon of the thing: “I am the Gutter Dream, Tune maker, born of steam. Tooting joy, tooting hope, I am the kallvope;” It is seemingly necessary to intone “Kalliope” as it is intoned by circus ; crowds and not by Webster which is doubtless a fault or would be a fault in another poet- But one eritie said > of “In Praise to Johnny Appleseed" that it was as full of faults as a sieve is of holes but was never the leas very great in its entire conception. FLOWER CAMPAIGN AIDED Portland School Children Show Inter est in Wild Plant Life Letters full of real human interest re ceived by Professor A. B- Sweetser, head of the department of botany, from chil dren of the Couch school of Portland show the great interest which he has aroused in Oregon’s wild flowers and their preservation. In a campaign to organize societies for the care of flowers, similar to the Audubon bird . societies. Professor Sweetser has en 1 deavored to interest the younger school children by giving lectures illustrated with slides. The need of a flower pro tection society was foreseen in the east and an organization formed, which now looks after the flowers along the high ways and in the parks. Financial help is greatly needed now to provide colored plates to be used in lectures for children, young people, and adults. Several persons are interested in this flower preservation movement which was begun by Professor Sweet ser. FOX FAVORS FREEDOM (Continued from page one) residences at the University of Ore gon.” Close Cooperation Desired Dean Fox declared herself to be eager to see student government instituted on the Oregon campus and expressed the hope that this governing; would take the form of a close cooperation between students and faculty. “I can see no reason why the students should not have student government if they want it,” declared the Dean. “I am confident that the administration and faculty would endorse it as soon as the Associated students and the student council are ready to assume the respon sibilities whcih would be incumbent upon them. “The ideal arrangement, it seems to me, would be a close cooperation be tween students and faculty. I should like to see greater student initiative together with faculty approval in place of faculty initiative and student ap proval,” she continued. Some Regulation Needed Asked -whether she believed that an installation of student government bring abolishment of the social and dis ciplinary rules at Oregon, Dean Fox said that she could not anticipate such procedure- She wishes university wo men to be free from boarding school supervision, but feels that they can never get away from regulations where there are so many living together. “There must be law and order in any group,” she pointed out, and she hopes that the social life, especially the danc ing, at the University will never be come a dissipation. She has always felt that social life should consist of normal recreation and not dissipation. “I should like to express the most cordial indorsement of every effort made to bring in the honor system.” she continued. “I am impressed with the fact that the students are taking time to deliberate before adopting a svstem which involves such responsibil ity.” DOUGLASS WRITES ARTICLE Algebra Test Described in December Number of Education Periodical The December issue of the Journal of Educational Research, the outstand ing periodical in the field of education, contains an article by Prof. H. R. Doug lass of the school of education descrip tive of his algebra tests which were printed in a monograph by the Univer sity last year. The tests which provide a method for i checking the effectiveness of teaching and the measurement of power in the subject, are recommended by the Uni ! versitv bureau of edncational research and are used in high schools of the state. Prof. Douglas is now collecting information and material preparatory to revising and adding to the tests which he has devised. OHIO WESLEYAN TO BUILD Construction plans for two new buildings to be ready for use by the middle of September, 1922, by stu dents at Ohio Wesleyan University have been submitted to and passed upon by the board of trustees of that univer sity. Students read the classified ads; try using them. Special Bus For Students Only! PORTLAND and RETURN $7.00 for this round trip See MRS DONNELLY At Y. M. C. A. Hut for reservations Any special trips can be ar ranged for. We reserve our week-end trips all for students. Be sure and make reserva tions early at Y.M.C.A. Hut. A. C. 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