Physics Commons^™

A Study Of Melting Points Of Various Binary And Tertiary Mixtures Of Waxes, Neil G. Goodrich

Bachelors’ Theses

The work undertaken in this thesis was done in cooperation with Joseph Sevenich and is a continuation of the work done by George Hable, Leonard Veranth and Lewis Wrangell. In this present work, the melting points of various trinary mixtures of waxes was studied, also the reliability of the method used in the determinations, and the effect of heat upon the mixtures. Graphs are used in the thesis in order to present a clearer picture of the work done and the results obtained.

Radioactive Properties Of The Subterranean Waters Of Ellis County, Kansas., Verne Lippert

Master's Theses or Doctor of Nursing Practice

Soon after the discovery of Becquerel rays in 1896, tests were made on ordinary matter to see if all matter were radioactive. Although there is evidence to show that all matter is radioactive, to a degree and under certain conditions, it has been found that the greater part of the observable effect is due to traces of radioactive material permeating all matter in general. Thus, radium and its products being the most active of radioactive substances, the surface of the earth is covered with traces of these radioactive substances but the amount varies from place to place. Moreover, determinations of …

Educative Value And Construction Of Laboratory Equipment For Physics, With Emphasis On An Optical Screen, Warren D. Conrad

Bachelors’ Theses

In the preparation of this thesis the writer has constantly kept in mind three distinct purposes: a) to show the place and importance of the lecture-demonstration in the teaching of physics; b) to provide the teacher of physics in the small high school a means whereby he may equip a laboratory at the smallest possible cost; and c) to describe in detail the construction of an optical screen for purposes of demonstration, indicating what can be done. in the building of home-made physics apparatus.

The Value Of High School Physics To The College Student, Emery White

Masters Theses & Specialist Projects

Secondary school science consists of biology, chemistry, physics, or a combination course known as general science. General science deals only with the practical side of the laws of physics. It fails to go into detail and very often omits the law entirely. Physics in high school requires a special room in the building which is not easily adapted to other use. A large amount of expensive equipment is need to teach it efficiently. Can all of this expense be justified? Is the student who ends his school career with high school graduation sent out into life with a large amount …

A Configurational Approach To Sound, Alfred R. Root

Journal of the Minnesota Academy of Science

No abstract provided.

A Short Study Of Laplace's Equation, Sidney Teweles Jr.

Bachelors’ Theses

Perhaps if I set forth my original inspiration for this thesis, the reader will be better able to understand the reason for the apparent limitations of treatment. In my study of differential equations, I had the task set before me of presenting a discussion of Laplace's equation to the class. A seemingly easy matter turned out to be quite difficult for the reason that most texts make but brief use of Laplace's equation. Thus in a mathematics book reference will be made to Laplace's equation simply as example of a mathematical process. Some of these processes are the change of …

The Application Of Differential Equations To The Laws Of Physics, Sherman Baker

Bachelors’ Theses

In this treatment of the mathematical expression of physical laws, all proofs and expositions of problems that are taken from particular books are acknowledged in the text. Formulas and proofs that are given in a conventional form by authors generally and are the property of no single man are not acknowledged. Such are the alternating current equations, the Mass Action formulas, parts of the thermionic current discussion, and Fourier's equation for the flow of heat.

Some preparation in the sciences on the part of the reader is taken for granted in the presentation of the matter on this thesis. The …

A Model For Crystal Structure, Eugene E. Menge

Bachelors’ Theses

The problem of this thesis resolves itself into the following: To build a model to show the structure of crystals and to present- an explanation thereof.

The Making Of Models To Illustrate The Principle Of Plane Polarized Light And The Phenomenon Of Double Refraction., Milton A. Sizer

Bachelors’ Theses

When the author took a course in Optics, and came into contact for the first time with the subject of polarized light and double refraction, he found it exceedingly difficult to visualize the various phenomena which took place. The advantage could easily be seen, of mechanical models made to illustrate the passage of light through glass and other crystals. The object of this thesis is to describe the making of mechanical models which are to be used in teaching the subject of polarization of light.

Piezo-Electricity, Glen S. Sunderland

Bachelors’ Theses

The term "piezo" was derived from the Greek word "piezein", meaning "to press".

Piezo-electricity relates to the peculiar electric effect of pres.sure on some. crystals. The particular crystals evincing this phenomenon are of the class of hemihedral or hemimorphous, possessing the asymmetric arrangement of either the atoms or molecules.

The Zeleny Electroscope And Its Application In The Measurement Of The Specific Conductivity Of Liquids Of Very Low Conductivity, Conrad A. Malecki

Bachelors’ Theses

The Zeleny electroscope is essentially a pendular-leaf type of electroscope. Figure 1 is a diagrammatic representation of the instrument.

History Of The Thermionic Tube, Mary Liguoria Urbin

Bachelors’ Theses

My interest in the field of physics being that of electricity, I have been permitted to pursue this thesis in the field of thermionics.

The thermionic tube is one of vital importance not only in the field of radiotelegraphy and radiotelephony, but is of great value in the field of engineering and a vast asset in university and college laboratories. In fact, its advent has opened up a new era in many fields. H. J. Van Bijl terms is a "versatile talking bottle." In a paper of this nature only the important features can be stressed, and even here much …

A Study Of The Acoustics Of Some Stockton Auditoriums And Rooms, Glen Halik

University of the Pacific Theses and Dissertations

Though the original purpose of this thesis was to investigate the cause for criticisms of the acoustical properties of the College Auditorium, it has been enlarged to a study of other Stockton Auditoriums and rooms with the idea of securing a technique of acoustical analysis similar to that of acoustical engineers in the industries. It was planned at first to set up an oscillator and reverberation meter, but it was found that the apparatus expense would be quite prohibitive. This research was therefore confined to noise meter measurements and reverberation calculations, and includes much of architectural and engineering branches. However, …

The Design Of A Multiple Intake Drainage Well, Orville L. Eliason

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The reclamation of water-logged land by suitable yet inexpensive forms of drainage is becoming a problem of constantly increasing magnitude. A fairly large portion of the extensive land areas, once considered as worthless has proved to be valuable by the introduction of proper drainage systems. Land areas, in which drainage in its simpler forms has proved inadequate, could perhaps be made valuable were it possible to develop an inexpensive yet effective form of drainage.

This paper has been prepared primarily for a consideration of poorly drained land areas and a possible means of their reclamation by a suitable choice and …

Dielectric Constant Of Absorbed Water, Reiji Funabiki

University of the Pacific Theses and Dissertations

That the dielectric constant of a substance is one of its important properties is a fact that has been very commonly taken into consideration by electrical engineers in design of apparatus and transmission lines. The importance of the dielectric constant is equally evident to the chemist working in the field of nonaqueous solutions, and Walden and others have spent a great deal of time and energy in attempting to measure the relationship of the dielectric constant of a solvent to its solvent ability, the degree of ionization of a solute dissolved in it, etc. Indeed it has become very common …

The Electret - An Effort To Find The Cause Of Its Permanent Polarization, Ernest F. Lundeen

University of the Pacific Theses and Dissertations

Certain waxes when solidified in a strong electric field exhibit unusual electrical properties. Several days after formation there is a polarization in the direction of the field which seems to persist for an indefinite length of time. The surface that was in contact with the anode during formation first ass a negative charge and then obtains a positive charge, which under proper conditions is practically permanent. The surface that was in contact with the cathode first has a positive charge and then obtains a negative charge which is the permanent charge.

Radio And A Public Address System For The High School, Kenneth H. Westlake

University of the Pacific Theses and Dissertations

All the findings and knowledge of electricity and magnetism are not new; even the Greeks as far back as 600 B. C. knew something about these forces. As time went on the facts increased.

After the experiments of Faraday, Maxwell, Hertz and such men as these, electricity and magnetism became a vital part of human life and endeavor. Within the last twenty-five years the advances in electricity have been very rapid. The action of the electric current is a vital part of many developments and is helping to make human life more enjoyable and interesting.

Almost all schools today are …

Actino- And Thermo- Response Of Molybdenite In Vacuo With Various Colored Lights, John H. Fulton

Master's Theses or Doctor of Nursing Practice

The purposes of this investigation are to study the reaction of molybdenite cells to light of various colors while in vacuo and at various temperatures. The samples of molybdenite were also subjected to radiant heat in the last part of the experiment, which was undertaken to determine to some extent the amount of thermos-electric effect which was due to thermal radiation in the first part of the investigation.

An Investigation Of The Thermo- And Actino- Electric Properties Of Molybdenite, William Otis Johnson

Master's Theses or Doctor of Nursing Practice

Considerable work has been done on various mineral substances and chemical compounds within recent years to ascertain, if possible, whether the substance possessed any degree of photo- or thermos-sensitivity; and, to determine the characteristics of these responses. Among the most prominent substances which have been tested are selenium, bismuth, antimony, hematite, stibnite, and molybdenite. It was the purpose of this investigation to summarize the phenomena that have occurred within samples of molybdenite under a variety of conditions involving heat, light, and e.m.f.

The Development And The Application Of The Photo-Electric Cell, Walter C. Gieringer

Bachelors’ Theses

This thesis on photo-electric cells had its origin in a popular article in which the cell was used to operate relays. Being interested in such feeble photo-electric currents, I was allowed to pursue this subject as a thesis. In this work I encountered many amazing phenomena and innumerable applications of the laws of physics, so that now I feel as though I have not only reviewed that science, but also acquired a greater knowledge of that subject.

A Study Of An Objective Placement Examination For Sectioning College Physics Classes, John Milton Willson

Masters Theses

"For several years the Department of Physics of the Missouri School of Mines has practiced sectioning of its classes in general physics. The aim has been to segregate in one section the students of superior ability, giving them a course including both the fundamentals of physics and their applications in engineering. The remainder are given a course in fundamentals without placing so much stress upon the applications...Another criterion used to supplement the first-year grade record is the student's score on the Iowa Placement Examinations. The physics examination consists of two parts, the Training Series and the Aptitude Series. These examinations …

The Three-Point Gap As A Means Of Control In Instantaneous Photography, Elgin Albert Denio

Master's Theses or Doctor of Nursing Practice

In 1926, Wynn Williams investigated the theory of the three-point gap, which phenomenon had been known and utilized for some time but until his investigation was not understood theoretically. This investigation has been divided into two distinct parts: First, when the energy was generated by a large Toepler-Holtz station machine; and second when the energy was generated by a one-kilowatt, 25,000 volt transformer.

A Bibliography Of The Theory Of Relativity, Ruth E. Richardson

University of the Pacific Theses and Dissertations

This thesis, a Bibliography of Relativity, has begun with a very meager knowledge of the amount of literature which has been written on the subject of relativity either s explanation or commentary. The project was to 11at all the books and periodical articles written on or about the subject Relativity which are on file in the libraries of the College of the Pacific, University of California and stanford up to and including the year 1920.

Studies In The Magnetic Rotation Of The Plane Of Polarized Light, Charles J. Glass

Bachelors’ Theses

As an introduction to the phenomenon of magnetic rotation it is well to offer a brief explanation of the phenomenon of optical activity. According to the ’’wave theory” of light the rays from any ordinary light vibrate in every conceivable plane. If the light is reflected from a glass surface or passed through a Nicol prism it undergoes a change. If an attempt is made to pass the beam through a second Nicol prism is found that the optical axes of the two prisms must be parallel to one another or the beam will not penetrate the second one.

A Study Of The Striated Spark By The Method Of Instantaneous Photography, Laurence L. Cruise

Master's Theses or Doctor of Nursing Practice

In 1867 Toepler found the existence of a pulse spreading from the region around the spark immediately after it had passed. Since the density of the air in the pulse differs from that of the surrounding gas, the pulse is optically different from the rest of the field and so can be made visible by the “Shadowgraph Method.” Topeler’s work was the first of its kind where an instantaneous view, say of the order of several millionths of a second, of the electric spark was obtained. IN 1926 Dr. Zinszer, while studying the life history of the electric spark by …

Faraday's Laws Of Electrolysis, M. Aquinas

Bachelors’ Theses

Physics has no equal, perhaps, in bringing the student to an appreciation of the beauty, the order and the harmony or the universe, and thus drawing the heart and the mind to God whose unbounded powers executed the eternal and marvelous wonders that are all about us.

It is intensely fascinating to take peeps into the "laboratories of God" and wonder what will be the next secret that He will let man in on. It seems as the ages roll by He gradually allows us to share more and more in His secrets or nature; He appears to be slowly …

Scholasticism An Intellectual Basis And Unifying Principle Of Modern Science, Alice V. Johnson

Electronic Theses and Dissertations

Amid the almost uninterrupted disintegration of systems during the last three centuries, the philosophy of St. Thomas has alone been able to stand the shock of criticism; it alone has proved sufficiently solid and comprehensive to serve as an intellectual basis and unifying principle for all the new facts and phenomena brought to light by modern science.

Studies In The Magnetic Rotation Of The Plane Of Polarized Light, Richard J. Stollenwerk, Clifford R. Haymaker

Bachelors’ Theses

Before entering upon a discussion of the historical development of the subject of magnetic rotation, it may be well to explain briefly the nature of the phenomenon under investigation. According to the wave theory of light, the rays from any ordinary light source vibrate in every conceivable plane. If now the light is reflected from a glass surface or passed through a Nicol prism, it undergoes a change. If an attempt is made to pass the beam through a second Nicol prism, it is found that the optical axes of the two prisms must be parallel to one another or …

The Constant Of Torsion Of A Given Wire, Ella M. Blunk

Bachelors’ Theses

"Using a given wire, the value of n determined dynamically is generally somewhat larger than the value determined by statical method. This is due partly to the fact that a wire, under the action of a torque, does not at once acquire its final twist. The twist increases under the application of a constant torque; and therefore, during a brief application of the torque (for example, during an oscillation of heavy body attached to the wire) the torque per unit twist has larger value than when the torque is applied for a long time. " Edwin Edser

The purpose of …

Theories Of Color And Color Vision, M. Regina Wallesch

Bachelors’ Theses

Theories of color have occupied the human mind since an early date even to the present. According to Professor Frank Allen there are from sixty to seventy different theories. Plato considered color to be due to flame-like particles projected from the pores of matter into the eye. Aristotle thought colors arose from various combinations of white and black.