Physics Commons^™

A Study Of The Temperature Behavior Of Various Liquids When Subjected To Pressures Ranging Between One And One Hundred Pounds Absolute, Jerome John Van De Kamp

Bachelors’ Theses

This thesis is submitted as a partial requirement for the degree of bachelor of science. The problem is one which dates back as far as the science which claims its authorship. It is a problem of which very little is known and one is justified in calling this old problem a youthful one, youthful, of course, in the sense that it is immature and as yet undeveloped. The problem by the very fact that it is in its infancy makes it one of Infinite length. It is a problem which has no greater practical application. Its ultimate value extends into …

Color., Bruce B. Vance

Electronic Theses and Dissertations

Color, any attempt to apply the scientific principles of color vision in the making of a picture must surely fail if it be not granted at the out set that it is only to a limited degree that those principles can apply. Color appreciation is as much a psychical as a physiological, and indeed, it is psychical not only with regard to the objective impression itself, but also with regard to the subjective, the associational mental process. Previous knowledge and training, experience traditions, the association of color impressions with impressions previously received through other senses and stored away as memories, …

A Method Of Measuring The Velocity Of Gravitation, Percy Martin Roope

Historical Dissertations & Theses

For many years the velocity of gravitation, or more properly, the velocity of propagation of gravitational potential, has been the subject of much theoretical discussion. The magnitude of this velocity according to proposed theories varies from the velocity of light to infinity. According to the theory of relativity, the velocity of gravitation should be equal to that of light, and the success which experimental tests of the theory have met justify this assumption. No previous work has been done, however, which would form the basis of a direct measurement. During the past three years, experiments relating to the velocity of …

Material For An Autobiography [Excerpt], 1927, Robert H. Goddard

March 16, 1926: The First Liquid-Propellant Rocket Launch

An excerpt from 'Material for an Autobiography', written by Robert Goddard in 1927 with some interpolations made in 1933. This writing never materialized into a full autobiography but can be read in The Papers of Robert H. Goddard, Volume I: [1927 and 1933: Material for an Autobiography]. This is an excerpt from that material, which covers the landmark March 16, 1926 rocket launch as well as the months between December 1925 and March 16. Goddard includes excerpts from his diary. Goddard's full diary entries from March 16 and 17, 1926 have been made available as their own excerpt here, …

A Study Of Melting Points Of Various Binary Mixtures Of Waxes, George John Hable

Bachelors’ Theses

Waxes, chemically speaking, are a class of esters which consist of mono- or di-hidric alcohols united with the higher fatty acids. These waxes contain free fatty acids, free alcohols and hydrocarbons. A considerable quantity of free cerotic acid (C26H52O2) myricyl palmitate (C16H31O2. C31H63), and high melting point hydrocarbons are found in beeswax. The acids that occur in waxes appear to have an even number of carbon atoms. Paraffine, ceresine, and ozokerite are really not waxes at all according to the chemical conception. The latter two are esters of glycerine united with higher fatty acids.

Robert Goddard's Diary Entry, March 17, 1926, Robert H. Goddard

March 16, 1926: The First Liquid-Propellant Rocket Launch

Robert Goddard's entry for March 17, 1926, from a newly digitized scan of Goddard's 1926 diary. This entry covers the events of the previous day, March 16, in which he achieved the world's first liquid-fuel rocket launch. Goddard kept one diary for each year, from 1898 until his death in 1945.

This entry is included towards the back of the diary, in the 'Memoranda' section, in order to have the space to fit his recounting of the day. The diary was a daily one and only left a few lines for each day. The transcription is as follows:

"The …

Robert Goddard's 1926 Diary, Robert H. Goddard

March 16, 1926: The First Liquid-Propellant Rocket Launch

A newly digitized scan of Robert Goddard's 1926 diary, the year he achieved the world's first liquid-fuel rocket launch. Goddard kept one diary for each year, from 1898 until his death in 1945. Transcriptions of key dates can be found in the section of The Papers of Robert H. Goddard titled '1925-1930: Liquid Propellant Rockets Fly'.

Please note that this is a daily diary, which only leaves a few lines to write about each day. Goddard wrote at more length about March 16th on March 17th but wrote that extra writing in a 'Memoranda' section towards the end of …

Figure 102: Two Tanks For Pressure-Operated Rocket, Winter 1926, Esther C. Goddard

March 16, 1926: The First Liquid-Propellant Rocket Launch

Photograph of two tanks for a pressure-operated rocket. The tank on the right would hold liquid oxygen that created pressure once vaporized (a disassembled view can be seen in Figure 103), and the smaller gasoline tank is on the left. These tanks would be modified in several ways leading up to the March 16, 1926 launch. Photographs of the subsequent tanks can be found in Figure 109, 110, 111, 112, 113, 114, and 115.

These were the first pressure tanks made following December 6, 1925 (the day Robert Goddard achieved the first …

Development Of A Liquid Propelled Rocket, Section Iii: December 1925 - May 1926 [Excerpt], Robert H. Goddard

March 16, 1926: The First Liquid-Propellant Rocket Launch

Excerpt from a report written by Robert Goddard tracing his development of the first liquid-propelled rocket. The full report covers 1921 to 1929. This excerpt contains most of part three which covers everything following December 6, 1925 (the day Robert Goddard achieved the first liquid-fuel rocket to lift its own weight) and May 1926. This excerpt contains everything up through March 16, 1926, the day Goddard saw the world's first successful launch of a liquid-propelled rocket.

The December 6, 1925 test used the pumps, engines, and other moving parts Goddard spent years working with and developing. Following this test, Goddard …

A Study Of Light Metals And Alloys At Low Temperatures, Donald E. Higgins

Historical Dissertations & Theses

Although the determination of the strength of metals and alloys at ordinary temperatures is an everyday matter, very little work has been done to determine their strength and elasticity at very low temperatures. Mallock and Schaefer have investigated certain metals at the temperature of liquid air, and have deduced formulae to express the relation between elasticity and temperature, while Andrade has given an expression for the flow of metals under large constant stress. This work was intended in part to find out if their formulae would apply to the very light alloys used here. Another object was to find, if …

Diffraction And Interference Applied To The Reproduction Of Sound, Percy Martin Roope

Historical Dissertations & Theses

The diffraction and interference problems in sound are to a large extent those in light. However, in regard to a practical solution of problems, the analogy must not be carried too far. In light, in general, we deal with slits or circular openings, the dimensions of which are large in comparison with the wave lengths employed. On the other hand, in sound the openings thru which sound passes are sometimes large and sometimes small compared with the wave lengths. Many of the approximations made in the solution of problems in light cannot be made in sound.

Alternating-Current Resistance And Inductance Of Single Layer Coils, Clarence N. Hickman

Historical Dissertations & Theses

An integral equation method is used to develop formulas for the alternating-current resistance and inductance of a system of parallel "go and return" circuits. It is shown how these formulas may be applied to single-layer coils. The formulas are applied to several coils in which the "skin effect" is quite pronounced. These coils are measured at several frequencies and the results compared with the computed values. The methods of measurements are explained and a discussion is given pertaining to the distribution of the effective resistance in a coil. The eddy current losses due to dead ends are measured and discussed. …

Spectrophotometric Analyses Of Colored Glasses, Norman C. Beese

Archived Theses and Dissertations

No abstract provided.

An Experimental Study Of The Cathode Fall In Helium And Argon With Wire Cathodes, L. G. Raub

University Studies (University of Nebraska) (1888–1984)

It was recognized rather early in the study of the phenomena of discharge of electricity through gases that the ordinary laws of conduction as found in solid and liquid conductors are not applicable to gases. It was shown by Zeleny and independently by Child that Ohm's law by no means represents the distribution of potential between electrodes in an ionized gas, but that the potential gradient is large in the vicinity of the electrodes, and not uniform throughout the space between them. When the pressure of the gas surrounding the electrodes is reduced to one or two millimeters and a …

Measurement Of Inductance And Capacity In Oscillating Circuits, Clarence N. Hickman

Historical Dissertations & Theses

Part I: Experiments with a Duddell Oscillograph
Part II: Measurement of Inductance and Capacity with the Drop-chronograph
Part III: Bridge Methods of Measuring Inductance and Capacity

Die Grundlage Der Allgemeinen Relativitätstheorie, Albert Einstein, Leipzig : Verlag Von Johann Ambrosious Barth

Before the Textbook

Albert Einstein's first exposition on the theory of relativity first printed in the journal "Annalen der Physik" Band 49, 1916.

Iii. Phase Change By Reflection – Primarily In The Ultra-Violet, Oliver Gish

Department of Physics and Astronomy: Faculty Publications

The first quantitative investigation of absolute phase change was made by Quinckel in 1872. This was followed by that of Wernicke, Wiener, Glan, Hennig, Drude, Koenigsberger and Bender. All these investigations were confined to the visible spectrum except that of Koenigsberger and Bender, who, in addition, measured for a few substances the phase change in the infra-red. So far no measurements of this phenomenon have been made in the ultra-violet.

Electric Double-Refraction In Carbon Disulphide At Low Potentials, Gustaf W. Elmen

University Studies (University of Nebraska) (1888–1984)

When light polarized at an angle of forty-five degrees to the lines of force is passed through certain dielectrics, between two parallel electrodes, they become double-refracting. The difference of phase, delta, between the two components of light at right angles and parallel to the lines of force, as represented by Kerr and verified by later investigators, is

δ = ± BP²l/a²

where B is the electro-optic constant, depending on, the dielectric, I the length, and a the distance between the plate' electrodes in centimeters, and P the difference of potential between the electrodes in C.G.S. units.

From …

The Electronic Theory, J. Harry Clo

Archived Theses and Dissertations

No abstract provided.

X-Rays, J. Harry Clo

Archived Theses and Dissertations

No abstract provided.

The Graphical Representation Of Magnetic Theories, Harold N. Allen

Department of Physics and Astronomy: Dissertations, Theses, and Student Research

The induction theory of magnetism, introduced by Faraday, is now looked upon by all physicists as correct. The older theory which assumes the existence of magnetic fluids covering the ends of the magnet is in some cases mathematically simpler, and is for this reason often made use of. This, however, is apt to breed confusion as to the true nature of the induction or polarization in any given case. The difficulty Tyndall experienced in accepting Faraday's views as to diamagnetism, is accounted for by the fact that he was thinking in terms of the fluid theory, while Faraday was considering …

Atmospheric Electricity, Nannie Etta Butler, Allen Pettit Lary

Archived Theses and Dissertations

No abstract provided.

Some Contributions Of Pure Math To Science, Herbert B.E. Case

Student and Lippitt Prize Essays

An examination of the connection between math and science through discoveries in the subjects of astronomy, mechanics, physics and chemistry.

The Spectroscope In Celestial Physics, S. A. Harker

Manuscript Thesis Collection

No abstract provided.

Studying Properties Of Xenon Doped Argon And Developing Optical Simulation Techniques For The Legend Collaboration, A Neutrinoless Double Beta Decay Experiment, Neil Christopher Mcfadden Dr

Physics & Astronomy ETDs

Neutrinoless double beta decay is a hypothesized lepton-number-violating process in which two neutrons decay to two protons, producing two electrons but no electron antineutrinos. The LEGEND collaboration will search for this decay in ⁷⁶Ge. To improve the argon active veto for LEGEND-1000, xenon doped argon was explored as an alternative active volume. Simulations using argon doped with 10 ppm xenon and pure liquid argon were used to predict the light yield from cosmic muons in a 100 liter cryogenic vessel. The simulations predicted that xenon doping would yield 1.83+/-0.02 more light, while an increase of 1.81+/-0.05 was measured. From …