Physical Sciences and Mathematics Commons^™

Back Matter, Rocket City Astronomical Association, Space Enterprises, Inc.

Space Journal

No abstract provided.

Beyond This Star, James L. Daniels Jr.

Space Journal

No abstract provided.

4. Kepler, Robert L. Bloom, Basil L. Crapster, Harold A. Dunkelberger, Charles H. Glatfelter, Richard T. Mara, Norman E. Richardson, W. Richard Schubart

Section VIII: The Development of Modern Science

Tycho Brahe (1546-1601), a Dane, spent nearly his entire life making careful measurements of the positions of the stars and planets. Most of his work was done at Copenhagen under the patronage of the Danish king. He developed and refined astronomical instruments to an accuracy that was far superior to anything previously done. In his late years at Prague, he started on the reduction to order of the systematic observations that he had made over a period of decades. In 1600 a young German mathematician and astronomer, Johannes Kepler (1571-1630), visited Tycho and then stayed to help in the mammoth …

2. Copernicus, Robert L. Bloom, Basil L. Crapster, Harold A. Dunkelberger, Charles H. Glatfelter, Richard T. Mara, Norman E. Richardson, W. Richard Schubart

Section VIII: The Development of Modern Science

Nicolaus Copernicus (1473-1543), of German and possibly Polish extraction, spent three years at the University of Cracow and then ten years at Italian universities. In Italy he was introduced to the Pythagorean ideas, which left a permanent mark on his mind, and became interested in astronomical theories. He returned home to the position of canon of Frauenburg cathedral where he stayed until his death. [excerpt]

1. Greek And Medieval Science, Robert L. Bloom, Basil L. Crapster, Harold A. Dunkelberger, Charles H. Glatfelter, Richard T. Mara, Norman E. Richardson, W. Richard Schubart

Section VIII: The Development of Modern Science

What kind of questions did the Greeks ask themselves about the physical universe? We can paraphrase Plato: the stars move about the earth in circles, the perfect paths, and they move with uniform motion as befits divine and eternal beings. But five of these stars are planets (Greek for wanderers) which appear to have irregular motion, first moving forward, then actually stopping, and then moving backward for awhile. Since the heavens are incorruptible, the planets too must really be moving in uniform motion in circular paths. How then can we account for the apparently irregular motions? What uniform motions must …

Outlook To Space Travel, Ernst Stuhlinger

Space Journal

No abstract provided.

Back Matter, Rocket City Astronomical Association, Space Enterprises, Inc.

Space Journal

No abstract provided.

Some Future Astronomical Considerations, Herman Oberth

Space Journal

No abstract provided.

Satellite Periods And The Gravitational Constant, Edgar W. Woolard

Space Journal

No abstract provided.

Where Are We Going?, Wernher Von Braun

Space Journal

No abstract provided.

Reaction, Wernher Von Braun

Space Journal

No abstract provided.

Front Matter, Rocket City Astronomical Association, Space Enterprises, Inc.

Space Journal

No abstract provided.

The Pioneer, Yewell Lybrand

Space Journal

No abstract provided.

Space Journal, Vol. 1, No. 1, Summer 1957, Rocket City Astronomical Association, Space Enterprises, Inc.

Space Journal

No abstract provided.

Why Conquer Space?, Fred L. Whipple

Space Journal

No abstract provided.

The Masses Of The Stars, Daniel M. Popper

Space Journal

No abstract provided.

The Father Of Astronautics, Ralph E. Jennings

Space Journal

No abstract provided.

Space Reporter, Alvis Howard Jr.

Space Journal

No abstract provided.

Projecting With Space Journal, B. Spencer Isbell

Space Journal

No abstract provided.

A Study Of Current Noise In Cokes, Carbons, And Graphites, Robert J. Lanter

Physics & Astronomy ETDs

This study shows that current noise occurs when there is a deviation of Ohm's Law, i.e., when the applied voltage and resultant current are no longer proportional. Since most, and perhaps all, cases of occurrence of frequency and current dependent noise are associated with non-linear devices, e.g., semiconductors, diodes, vacuum tubes, insulators near breakdown, it seems reasonable to seek a mechanism involving non-linearity as an important feature. Even though it may not be justifiable to seek a single mechanism to explain all of the occurrences of current noise, nevertheless, the fact that in cases studied and discussed herein …

A Cloud Chamber Study Of Penetrating Showers In Aluminum, Copper And Lead, James Francis Kenney

Physics & Astronomy ETDs

In recent years, much work has been done in the investigation of high-energy nuclear collisions in various materials. The purpose of these investigations is to gain a better understanding of nucleon-meson-nucleon interactions at high energies. Laboratory accelerating devices are capable at the present time of attaining energies which are still very low in comparison to the upper limit of the cosmic radiation energy spectrum. As a result, these investigations are best carried out by using the very hard component of the cosmic radition as the primary particle of the collision.

A Chemical Ozone Measuring Radio Sonde, Alan W. Peterson

Physics & Astronomy ETDs

The Vertical distribution of atmospheric ozone has been determined spectroscopically either from surface observations or from balloon-borne spectrographs sent aloft. These spectrographic techniques have several disadvantages. Surface observations of the "Umkehr Effect" give only a rough distribution, four or five points for the entire atmosphere.

A Pulse Length Analyzer, Paul Scheie

Physics & Astronomy ETDs

For experiments involving small scintillators and for experiments involving scintillator telescopes, the circuitry may closely resemble that used with geiger counters. However, if it is desired to make use of the variation in the signal amplitude in a large scintillator, some means must be found to deal with a wide range of amplitudes. The scintillator employed in the experiment to which this work relates is a tank 10 feet in diameter that contains 300 gallons of activated toluene; light of the scintillations is collected by a 16 inch photo-multiplier tube that is located on top of the tank.

The Vertical Gradients Of Ozone Concentration And Its Relation To The Eddy Coefficient Of Diffusion, Joseph Levine

Physics & Astronomy ETDs

The purpose of this thesis is to apply this method to a tentative evaluation of the eddy coefficient of diffusion. Actually the investigation was more specifically an attempt to relate the difference in ozone concentration between the two stations to the average wind shear and to the vertical thermal stability.

The Motion Of A Charged Particle In Homogenous Time-Varying Magnetic Field, Thomas R. Bates

Physics & Astronomy ETDs

This paper will discuss the motion of a non-relativistic, non-radiating charged particle in an infinite homogeneous magnetic field which varies linearly with time. We shall assume the motion to be confined to a plane perpendicular to the magnetic field.

An Indicator Of Position With Respect To The Earth's Magnetic Field, Lloyd C. Nielsen

Physics & Astronomy ETDs

A large amount of experimental research in the field of atmospheric physics involves carrying apparatus aloft by means of balloons. Data from balloon-borne instruments may be obtained either by recovery of the apparatus or by radio telemetering during the flight. Of these two methods, the latter is of course the more convenient and reliable, since recovery of the apparatus is time-consuming and often impossible.

The Mathematical Theory Of Meteorite Penetration Into Earth-Targets, Richard D. George

Physics & Astronomy ETDs

A problem in mathematical ballistics of fundamental importance in meteoritics is investigated in this thesis, namely the problem of estimating the speed at which a meteorite of assigned shape, mass and density struck a specific earth-target, either from purely theoretical considerations or from penetration or other impact-effects actually observed and measured in the earth-target.

In the second chapter several methods for calculating impact-velocities based on terminal ballistic theory are developed. While some of these methods can be successfully applied to as many as 63 recovered meteorites, others are applicable only to a very few known meteorites because of the failure …

An Experiment Of The Time Variations Of Cosmic Rays Underground, Mercedes Merner Agogino

Physics & Astronomy ETDs

Ever since the discovery of cosmic rays, investigations of time variations in their intensity have been carried out in the hope of obtaining information on their nature and origin. Early experiments were somewhat contradictory, but it was soon clear that any variation present could be no longer than a few percent at the most. This meant that experiments had to be carefully planned and carried out over a long period of time to attain the statistical accuracy necessary for clear-cut results. In addition, the influence of the atmosphere and the earth's magnetic field made it very difficult to interpret the …

The Measurement Of The Concentration Of Ozone In The Atmosphere By The Oxidation Of Silver, Albert Goodman

Physics & Astronomy ETDs

Under conditions of standard temperature and pressure, it has been found that no reaction occurs between silver and oxygen, nor between silver and ozone. When the temperature of the silver is raised, however, it is oxidized by ozone but not by oxygen. Upon raising the products of the reaction to a still higher temperature, they decompose into silver and ordinary oxygen. By measuring the amount of oxygen thus produced, it would be possible to calculate the amount of ozone involved originally.

The Structure Of A Shock Front In Argon, John W. Bond Jr.

Physics & Astronomy ETDs

If a one-dimensional shock wave travels through argon, the translational degrees of freedom of the atoms are immediately excited and reach translational equilibrium within two collision lengths. If the shock velocity is sufficiently high, energy will be transferred from the translational degrees of freedom to those of electronic excitation and ionization until complete thermal equilibrium exists. The region between the first disturbance in front of the shock and the point at which thermal equilibrium is first realized is the shock front.