Non-Newtonian Gravity Or Gravity Anomalies? PDF Download
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Author: David P. Rubincam
Publisher:
ISBN:
Category : Gravity
Languages : en
Pages : 16
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Book Description
Author: Ephraim Fischbach
Publisher: Springer
ISBN: 9781461271444
Category : Science
Languages : en
Pages : 0
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Book Description
A history of the attempts to test the predictions of Newtonian Gravity, describing in detail recent experimental efforts to verify both the inverse-square law and the Equivalence Principle. Interest in these questions has increased in recent years, as it has become recognised that deviations from Newtonian gravity could be a signal for a new fundamental force in nature. This is the first book devoted entirely to this subject, and will thus be useful to both graduate students and researchers interested in this field. It describes the ideas that underlie searches for such deviations, focusing on macroscopic tests. A comprehensive bibliography of some 450 entries supplements the text.
Author: David P. Rubincam
Publisher:
ISBN:
Category : Gravity
Languages : en
Pages : 16
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Book Description
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781792704260
Category :
Languages : en
Pages : 26
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Book Description
Geophysical measurements of G differ from laboratory values, indicating that gravity may be non-Newtonian. A spherical harmonic formulation is presented for the variation of (Newtonian) gravity inside the Earth. Using the GEM-10B Earth Gravitational Field Model, it is shown that long-wavelength gravity anomalies, if not corrected, may masquerade as non-Newtonian gravity by providing significant influences on experimental observation of delta g/delta r and G. An apparent contradiction in other studies is also resolved: i.e., local densities appear in equations when average densities of layers seem to be called for. Rubincam, David P. and Chao, B. Fong and Schatten, Kenneth H. and Sager, William W. Goddard Space Flight Center NASA-TM-4030, REPT-88B0104, NAS 1.15:4030 ...
Author: David P. Rubincam
Publisher:
ISBN:
Category : Gravity
Languages : en
Pages : 16
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Book Description
Author: Henglei Zhang
Publisher: Frontiers Media SA
ISBN: 2832543553
Category : Science
Languages : en
Pages : 151
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Book Description
Knowledge of the density of the subsurface of a planet is crucial in determining its interior structure, and one can estimate the average bulk crustal density directly using the admittance between topography and gravity, which has been successfully used for the Moon and is being extended to Mars. The interpretation of gravity data is commonly done by computation of a gravity anomaly (GA) by correcting the raw data for a number of factors that impact the gravity field. Depending on the target science, different types of GA can be computed, the interpretation of which have been widely employed in geophysics to explore the interior of the Earth and other planets, through applications in airborne gravity, near-surface geophysics, regional geophysics, and planetary geophysics. Yet how to extract a great variety of information from GAs for applications in geophysics entails further investigation. Over the decades, remarkable progress has been made to extract information from GAs identified from data. For instance, a series of 3D inversion algorithms facilitates the extraction of the subsurface density distribution. With the improved processing based on dense gravity observations that yield high precision and high resolution GAs, more detailed geological information can be unveiled. When using the admittance between topography and gravity to estimate the crustal density, it is essential to identify what kinds of GAs to be used, such as Bouguer gravity or free-air gravity. Also, what appropriate approaches to scrutinize the applications of GAs in various case studies (e.g., calculating the geoid and estimating the elastic thickness) need to be decoded.
Author:
Publisher: DIANE Publishing
ISBN: 9781422328286
Category :
Languages : en
Pages : 4
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Author: William H. Lucas
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 32
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Book Description
Gravity anomalies in the north-central Pacific have been obtained aboard the USC&GS Ship Surveyor with a LaCoste and Romber surface-ship gravity meter. The data lie along several profiles from the Hawaiian Archipelago to 39°N between 167°W and 173°30'W and extend across the north side of the Hawaiian Archipelago and portions of the Murray, Pioneer, Mendocina and Surveyor fracture zones. The accuracy of measurements is estimated to be within ± 5 mgal and the data are in agreement with those published by Worzel on the basis of 1948 submarine pendulum measurements. Maps of free-air and Bouguer anomalies are presented and some of their crustal structural implications are discussed.
Author: Aerospace Center (U.S.)
Publisher:
ISBN:
Category : Gravity
Languages : en
Pages : 136
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Book Description
Author: Charles E. Heywood
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 36
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Book Description
Author: Hyman Orlin
Publisher: National Academies
ISBN:
Category : Gravity
Languages : en
Pages : 168
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Book Description
