Results 261 to 270 of about 24,442 (290)
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Magnetic Declination Demonstrator
Journal of Geological Education, 1955The construction of a device to demonstrate the method of correcting a compass, so that true bearings may be read from it rather than magnetic bearings, is described. Examples are given to illustrate its use.
J. Donald Ryan, Bradford Willard
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Tilting deviations in magnetic declinations
Terrestrial Magnetism and Atmospheric Electricity, 1929Experiments were made by swinging compasses in a wooden swing for the purpose of investigating deviations caused by the ship's rolling motion. Results obtained with various types of compasses are submitted in two tables. Dynamic deviations, the kinetic equilibrium error, and conditions other than those considered in these two theories are briefly ...
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Observed magnetic declinations in West Antarctica
Journal of Geophysical Research, 1961During the past four austral summers the United States has maintained an active oversnow and airborne traverse program in West Antarctica and on the adjoining Ross and Filchner ice shelves. Six of these traverses included as part of their objectives periodic determinations of magnetic declination D.
Ned A. Ostenso, Charles R. Bentley
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Mechanizing magnetism in restoration England—the decline of magnetic philosophy
Annals of Science, 1987Summary The magnet served three interests of Restoration mechanical philosophers: it provided a model of cosmic forces, it suggested a solution to the problem of longitude determination, and evidence of its corpuscular mechanism would silence critics.
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Magnetic Declination in South Africa (1936)
South African Geographical Journal, 1938(1938). Magnetic Declination in South Africa (1936) South African Geographical Journal: Vol. 20, No. 1, pp. 40-41.
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Analytical Solution of Magnetic Declination Problem
Journal of Surveying Engineering, 1989The magnetic declination problem involves the determination of present magnetic bearings (or azimuths) of township surveys for the purpose of retracement, based on original survey data. This paper presents an analytical solution of a problem which has been solved only graphically.
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