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Full-Text Articles in Physical Sciences and Mathematics
An Experiment Of The Time Variations Of Cosmic Rays Underground, Mercedes Merner Agogino
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
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.
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.
Diffuse Reflection Of Light, Francis L. Bentsen
Diffuse Reflection Of Light, Francis L. Bentsen
Physics & Astronomy ETDs
This thesis describes an attempt to determine the feasibility of measuring the ozone content in the air by absorption of light over a long path.
Cosmic Ray Intensity At Balloon Altitudes, Kenneth R. Greider
Cosmic Ray Intensity At Balloon Altitudes, Kenneth R. Greider
Physics & Astronomy ETDs
In the investigation of cosmic rays at balloon altitudes, it is important to recognize the various factors that affect the total intensity at any point in the atmosphere. The three main factors are: (1) Atmospheric influence: variation of intensity with atmospheric depth, (2) Geomagnetic influences: variations of intensity with the geomagnetic latitude, and (3) Extraterrestrial influences: periodic and non periodic variations of intensity.
Analysis Of Zodiacal Light Recordings, Mclane Downing
Analysis Of Zodiacal Light Recordings, Mclane Downing
Physics & Astronomy ETDs
The object of the zodiacal light work at Capillo Peak is to take comparable records of zodiacal light intensities over an extended period of time. In order to obtain extra-terrestrial isophotes from the original recordings, corrections for loss of light intensity in the atmosphere must be made.