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Articles 9181 - 9199 of 9199

Full-Text Articles in Physical Sciences and Mathematics

Photometry, Arthur G. Barkow May 1932

Photometry, Arthur G. Barkow

Bachelors’ Theses

The preparation of this paper was not undertaken primarily with a view of discussing all types of photometer, but mostly for the investigation of the Ritchie Wedge. As for the first part, the history or resume is brief and somewhat incomplete. In the ensuing pages, no reference is given to the portable photometer, so helpful to illuminating engineers. This was not deemed necessary since the principle involved is similar to those discussed.

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Scholasticism An Intellectual Basis And Unifying Principle Of Modern Science, Alice V. Johnson Jan 1929

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

Electronic Thesis and Dissertation

No abstract provided.

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Development Of Selected Mathematical Instruments Representing Angular, Logarithmic And Arithmetic Computation, Lillian L. Troxell Jan 1927

Development Of Selected Mathematical Instruments Representing Angular, Logarithmic And Arithmetic Computation, Lillian L. Troxell

University of the Pacific Theses and Dissertations

The Sextant in its earliest known form consisted of divided circles and compasses with simply sights. An early Creek astronomer of the second century after Christ, Claudius Ptolemaeus, or more commonly called Ptolemy, wrote a book entitled Megale Syntaxis tes Astron- omias, also known by the Arabic title Almagest. The instrument described in this book was called the Astrolable and was used to measure the angular distance between stars. It was made of two concentric vertical circles, the largest and outer circle was about sixteen inches in diameter with graduated arc; the central ring was movable and carried the two …

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Total Solar Eclipse, January 24, 1925, Halsey Dewolf Jan 1925

Total Solar Eclipse, January 24, 1925, Halsey Dewolf

Fulton/Howe Collection

On January 24, 1925, a total eclipse of the sun was visible throughout much of New England. This account, written by Halsey DeWolf, describes the eclipse as viewed from Watch Hill, Rhode Island.

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The Voice Of The Phi Sigma -- 1922 -- All Star Number, Phi Sigma Jan 1922

The Voice Of The Phi Sigma -- 1922 -- All Star Number, Phi Sigma

The Voice of the Phi Sigma

This item is part of the Phi Sigma collection at the College Archives & Special Collections department of Columbia College Chicago. Contact archives@colum.edu for more information and to view the collection.

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Ua94/6/2/7 Physiography Notebook, Carl Ellis Jan 1911

Ua94/6/2/7 Physiography Notebook, Carl Ellis

Student/Alumni Personal Papers

Atlas Science Table for Laboratory Notes and Drawings in Physiography notebook used by Carl Ellis for Robert Green's class.

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The Structure Of The Universe: Being A Presentation Of Professor Osborne Reynolds' Theory Of Gravitation, John Mackenzie Jan 1910

The Structure Of The Universe: Being A Presentation Of Professor Osborne Reynolds' Theory Of Gravitation, John Mackenzie

Journal of the Minnesota Academy of Science

No abstract provided.

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Ua94/6/2/14 Physiography Notebook, Annie Reis Jan 1910

Ua94/6/2/14 Physiography Notebook, Annie Reis

Student/Alumni Personal Papers

Physiography notebook kept by student Annie Reis in 1910. Notebook includes notes and drawings related to physical geography such as solar systems, rivers, faults, weather and glaciers.

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Some Contributions Of Pure Math To Science, Herbert B.E. Case Jan 1897

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.

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Comets And Meteors, Lincoln N. Oatley Jan 1895

Comets And Meteors, Lincoln N. Oatley

Student and Lippitt Prize Essays

Defines and describes named comets and meteor events and their scientific study.

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The Physical Character Of The Sun, J. F. Downey Dec 1882

The Physical Character Of The Sun, J. F. Downey

Journal of the Minnesota Academy of Science

No abstract provided.

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The Study Of Recent Comets, William W. Payne Dec 1882

The Study Of Recent Comets, William W. Payne

Journal of the Minnesota Academy of Science

No abstract provided.

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The Fixed Stars, John F. Downey Dec 1880

The Fixed Stars, John F. Downey

Journal of the Minnesota Academy of Science

The object of this paper is to give, in a popular form, a brief review of what is known about the fixed stars. Although they have always been objects of interest, have guided the mariner over trackless seas, arid have inspired many sublime and noble thoughts, yet, until a comparatively recent date, only three things were known about them; viz., that they retain (approximately) their ·relative positions, that they are self luminous, and that they are very far away.

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Some Theories Of The Origin Of Meteorites, C. W. Hall Dec 1880

Some Theories Of The Origin Of Meteorites, C. W. Hall

Journal of the Minnesota Academy of Science

No abstract provided.

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The Spectroscope In Astronomy, W. W. Payne Dec 1880

The Spectroscope In Astronomy, W. W. Payne

Journal of the Minnesota Academy of Science

No abstract provided.

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The Voice Of The Phi Sigma -- 1880 -- Volume 02, No. 06, Phi Sigma Feb 1880

The Voice Of The Phi Sigma -- 1880 -- Volume 02, No. 06, Phi Sigma

The Voice of the Phi Sigma

This item is part of the Phi Sigma collection at the College Archives & Special Collections department of Columbia College Chicago. Contact archives@colum.edu for more information and to view the collection.

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Astronomy—Scientific And Unscientific, G. W. Tinsley Dec 1873

Astronomy—Scientific And Unscientific, G. W. Tinsley

Journal of the Minnesota Academy of Science

No abstract provided.

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Farmer's Almanack 1825, Robert B. Thomas Dec 1824

Farmer's Almanack 1825, Robert B. Thomas

Rare Books

The Farmer's Almanack contains astronomical calculations, a farmer's calendar, military fines, college vacations, table of simple interest, court calendar, agricultural information, Episcopalian holidays, poetry, anecdotes, weather observations, roads and innkeepers and other useful information.

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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 Feb 202

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 …

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