Earth Motion Measurements
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Intermediate Range Earth Motion Measurements
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Author : L. M. Swift
language : en
Publisher:
Release Date : 1962
Intermediate Range Earth Motion Measurements written by L. M. Swift and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Nuclear excavation categories.
Earth Motion Measurements
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Author : L. M. Swift
language : en
Publisher:
Release Date : 1961
Earth Motion Measurements written by L. M. Swift and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Nuclear explosions categories.
Earth Motion Measurements
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Author : L. M. Swift
language : en
Publisher:
Release Date : 1959
Earth Motion Measurements written by L. M. Swift and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Earth movements categories.
Earth Motion And Stress Measurements Project Ln302 Operation Dial Pack
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Author : Donald W. Murrell
language : en
Publisher:
Release Date : 1974
Earth Motion And Stress Measurements Project Ln302 Operation Dial Pack written by Donald W. Murrell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Earth movements categories.
The objectives of this study were to measure and to analyze the earth motions and stresses produced by the Dial Pack 500-ton TNT detonation. Particle acceleration, particle velocity, and soil stress gages were installed to measure the ground motions and stresses in the 1,500- to 50-psi predicted air-blast overpressure region (83 to 540 feet from ground zero) at depths below the ground surface of 1.5 to 30 feet. Time histories of all successful measurements are included in Appendixes A and B. Ground shock arrival time data indicated the occurrence of outrunning ground motion at the ground surface at a distance of about 600 feet from ground zero, or the 35-psi pressure level. (Modified author abstract).
Earth Motion Measurements
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Author : L. M. SWIFT
language : en
Publisher:
Release Date : 1961
Earth Motion Measurements written by L. M. SWIFT and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with categories.
Several parameters of ground motion on two deep underground nuclear detonations (Evans and Blanca) are measured. Primary measurements included vertical acceleration and velocity in a deep hole over Evans zero, horizontal and vertical acceleration on the mesa surface, and horizontal surface strain. Additional data were obtained on vertical response spectra (reed gage), surface subsidence (liquid level), and aftershocks (geophone listening) (Report WT-1740). Despite the less than satisfactory over-all results, some conclusions can be drawn on the basis of the data obtained. Arrival time studies seem to confirm earlier indications of a high speed layer in the Area 12 mesa at 300-foot depth. This layer was found to preclude general conclusions as to propagation mechanism or amplitudes measured at the surface. Subsurface motions although very small were consistent with scaling methods applied to prediction of Hardtack-II events.
Earth Motion Measurements
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Author :
language : en
Publisher:
Release Date : 1959
Earth Motion Measurements written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Earth movements categories.
Time From Earth Rotation To Atomic Physics
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Author : Dennis D. McCarthy
language : en
Publisher: Cambridge University Press
Release Date : 2018-10-18
Time From Earth Rotation To Atomic Physics written by Dennis D. McCarthy and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-18 with Science categories.
In the twenty-first century, we take the means to measure time for granted, without contemplating the sophisticated concepts on which our time scales are based. This volume presents the evolution of concepts of time and methods of time keeping up to the present day. It outlines the progression of time based on sundials, water clocks, and the Earth's rotation, to time measurement using pendulum clocks, quartz crystal clocks, and atomic frequency standards. Time scales created as a result of these improvements in technology and the development of general and special relativity are explained. This second edition has been updated throughout to describe twentieth- and twenty-first-century advances and discusses the redefinition of SI units and the future of UTC. A new chapter on time and cosmology has been added. This broad-ranging reference benefits a diverse readership, including historians, scientists, engineers, educators, and it is accessible to general readers.
Operation Dial Pack Project Ln305
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Author : Donald W. Murrell
language : en
Publisher:
Release Date : 1973
Operation Dial Pack Project Ln305 written by Donald W. Murrell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Blast effect categories.
The objective of this project was to measure and analyze ground shock in the outrunning region produced by the 500-ton Dial Pack detonation. Motions and stresses were measured at 645- and 840-foot ground ranges at depths of 1.5, 5, 10, and 20 feet. Thirty-one of thirty-two gages produced good records; time histories are included in Appendixes A and B, and frequency response spectra are presented in Appendix C. (Modified author abstract).
Distant Plain Events 6 And 1a
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Author : Donald W. Murrell
language : en
Publisher:
Release Date : 1970
Distant Plain Events 6 And 1a written by Donald W. Murrell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Earth movements categories.
Vela Uniform Nougat Series Antler Event
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Author : L. M. Swift
language : en
Publisher:
Release Date : 1961
Vela Uniform Nougat Series Antler Event written by L. M. Swift and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Accelerograms categories.