ELECTRIC EARTH TRANSIENTS IN GEOPHYSICAL PROSPECTING

Geophysics ◽  
1936 ◽  
Vol 1 (2) ◽  
pp. 271-277 ◽  
Author(s):  
Louis Statham
Keyword(s):  
Electric Current ◽  
Salt Dome ◽  
Geophysical Prospecting ◽  
The Earth ◽  
Electrical Methods ◽  
The Times

A suddenly applied electric current is passed through the earth by means of spaced electrodes. The form of the potential transient as it appears outside the current electrodes is studied. The potential transient is extremely rapid and refined methods of recording are necessary. Means for measuring the relative times of the transient potentials received from different points are discussed. A survey taken over a known deep salt dome is shown; anomalous times of the transients are found to exist over the dome. No correlation is seen between the times of the transients and the resistivity as found by ordinary electrical methods.

scholarly journals STATISTICAL LITERACY AS THE EARTH MOVES

2017 ◽  
Vol 16 (1) ◽  
pp. 31-37
Author(s):  
CHRIS J. WILD
Keyword(s):  
Education Research ◽  
Statistics Education ◽  
Human Interaction ◽  
Data Display ◽  
Statistical Literacy ◽  
Bob Dylan ◽  
Research Journal ◽  
The Earth ◽  
The Times ◽  
Seismic Forces

“The Times They Are a-Changin’” says the old Bob Dylan song. But it is not just the times that are a-changin’. For statistical literacy, the very earth is moving under our feet (apologies to Carole King). The seismic forces are (i) new forms of communication and discourse and (ii) new forms of data, data display and human interaction with data. These upheavals in the worlds of communication and data are ongoing. If anything, the pace of change is accelerating. And with it, what it means to be statistically literate is also changing. So how can we tell what is important? We will air some enduring themes and guiding principles. First published May 2017 at Statistics Education Research Journal Archives

The Geomagnetic Chart's Drawing Based on Normal Kriging Method

2013 ◽  
Vol 705 ◽  
pp. 596-601
Author(s):  
Xiao Jun Zhang ◽  
Chong Kang ◽  
Yi Chao Zhao ◽  
Yu Yuan Liu ◽  
Li Ming Fan ◽  
...  
Keyword(s):  
High Precision ◽  
Kriging Method ◽  
Geophysical Prospecting ◽  
Research Focus ◽  
The Times ◽  
Grid Based ◽  
The Way

In geophysical prospecting area, the issue how to obtain high precision and low scale geomagnetic charts has been a research focus all the times. In this article, the application based on normal Kriging method can be interpolation proved. Through interpolation and evaluation for the original geomagnetic grid based on Kriging algorithm, the new geomagnetic grid can be estimated by the way of data's transitivity. After that, the geomagnetic chart with high precision and low scale can finally be drawn. At the same time, its feasibility upon this sort of method has been verified.

scholarly journals The Importance Of Prophetic Medicine in the Modern Era

2020 ◽  
Vol 20 (01) ◽  
Author(s):  
Dr. Ghazala Aleem
Keyword(s):  
The Earth ◽  
Natural Remedies ◽  
The Times ◽  
Modern Era ◽  
Methods Of Treatment

When a man was sent to the earth the first thing, he learnt was the understanding of medicine. The purpose of this knowledge was to protect the health at hand and to retain the health lost in the times of illness. This knowledge then progressed and reached to its highest level with the progress in human civilization. The Prophet Muhammad (P.B.U.H) spread the infinite knowledge of health, fitness, treatments, medications and cleanliness. For the treatments of various diseases, He (P.B.U.H) emphasized on natural remedies and preached meaningful prayers. His remedies were comprised of following characteristics; 1) Prophylaxis, Hygienics, Treatments, Abnegation and Affability towards ill Prophet Muhammad (P.B.U.H)’s methods of treatment were enlightened with Prophethood; therefore there can be no doubt in them not being beneficial. It is incumbent on us to accept with utmost religiosity the methods prescribed by our Prophet (P.B.U.H) and to have firm faith that the health can be achieved and retained upon following these methods. In this modern era Prophet ’s Medicine is 1400 years old and is still valuable and beneficial for the treatment and cure for mankind  

scholarly journals THE MAGNETIC PROPERTIES MEASUREMENT OF COIL FOR GRAVITATIONAL ACCELERATION DETERMINATION

2020 ◽  
Vol 5 (2) ◽  
pp. 119-128
Author(s):  
Cherly Salawane ◽  
Supriyadi Supriyadi ◽  
Ronaldo Talapessy ◽  
Mirtha Yunitha Sari Risakotta
Keyword(s):  
Magnetic Field ◽  
Magnetic Properties ◽  
Field Strength ◽  
Electric Current ◽  
Graphical Method ◽  
Current Strength ◽  
Gravitational Acceleration ◽  
The Earth ◽  
The Magnetic Field ◽  
A Current

The value of the gravitational acceleration of the earth above the earth’s surface depends on the position of the latitude and longitude of the earth’s surface, in other words, because the shape of the earth’s surface is not round like a ball. The magnitude of gravity is not the same everywhere on the surface of the earth. The purpose of this study is to analyze the value of the earth’s gravitational acceleration in a laboratory using a current balance with a graphical method. Fluctuations in the value of the magnetic field strength (B) and the value of the electric current strength (i) on the current balance cause the value of laboratory gravitational acceleration (glab) to vary in the transfer of electric charge (q) according to coil type. The magnitude of the earth’s gravitational acceleration value obtained in a laboratory with a current balance for each type of coil is as follows: SF-37 glab-nr=9.89 m/s2, SF-38 glab-nr=9.90 m/s2, SF-39 glab-nr=9.76 m/s2, SF-40 glab-nr=9.95 m/s2, SF-41 glab-nr=9.75 m/s2 dan SF-42 glab-nr=9.93 m/s2. The results obtained indicate that the value of the earth’s gravitational acceleration in a laboratory close to the literature value is the value of the glab-nr in the SF-37 coil type of 9.89 m/s2.

Time Structure of Solar Flare Proton Events

1968 ◽  
Vol 1 (4) ◽  
pp. 148-149
Author(s):  
B. J. Stone
Keyword(s):  
Solar Flare ◽  
Interplanetary Space ◽  
Cosmic Ray ◽  
Solar Proton ◽  
Progress Report ◽  
Flare Activity ◽  
Space Probe ◽  
Short Term ◽  
The Earth ◽  
The Times

This paper is a progress report on an examination of the short-term variability of solar proton flux in interplanetary space at times of solar flare activity. The data are from the GRCSW cosmic-ray detector on board the Pioneer 7 space probe, which, at the times to be discussed, was more than a million miles from the Earth.

A LOW FREQUENCY ELECTRICAL EARTH MODEL

Geophysics ◽  
1955 ◽  
Vol 20 (4) ◽  
pp. 860-870 ◽  
Author(s):  
William C. Pritchett
Keyword(s):  
Low Frequency ◽  
Salt Dome ◽  
Earth Model ◽  
Model Surface ◽  
Inductively Coupled ◽  
The Earth ◽  
Surface Measurements ◽  
Minor Anomalies ◽  
Model Equations

A general earth model is described which simulates the earth when excited by currents either conductively coupled to the earth by electrodes or inductively coupled to the earth by loops. Consideration of model equations showed that a material with a resistivity of approximately [Formula: see text] ohm‐meters was desired for use in the model. Although suitable materials with this resistivity were not known, it was found that fine bronze wheel grindings held together by wax did have the required macroscopic resistivity. Using this model, surface measurements were made employing a modified Wenner spread “one mile” in length. Only minor anomalies resulted from a simulated salt dome “three‐quarters of a mile” in diameter and “one‐half mile” below the surface.

THE IMPEDANCE OF A GROUNDED WIRE

Geophysics ◽  
1942 ◽  
Vol 7 (4) ◽  
pp. 414-418 ◽  
Author(s):  
Alfred Wolf
Keyword(s):  
Geophysical Prospecting ◽  
The Earth

The impedance of an insulated wire stretched along the surface of the earth, regarded as a homogeneous conductor, is a function of frequency and of the conducitivity of the earth. Formulas are given for the inductance and the resistance of such a wire which are applicable under conditions met with in geophysical prospecting.

Regular Motions in the Ionosphere: Electric and Magnetic Relationships

1961 ◽  
Vol 42 (2) ◽  
pp. 85-100 ◽  
Author(s):  
Sydney Chapman
Keyword(s):  
Magnetic Field ◽  
Electric Current ◽  
Electron Density ◽  
Geomagnetic Field ◽  
Sunspot Cycle ◽  
Ionospheric Currents ◽  
Electric Currents ◽  
Dynamo Action ◽  
Ionospheric Electron Density ◽  
The Earth

Regular worldwide motions in the ionosphere produce daily varying currents there by dynamo action in association with the geomagnetic field. The changing field of these currents induces electric currents within the earth. At the earth's surface, the combined magnetic field of these currents is measured. The parts of primary and secondary origin can be determined separately. The form and intensity of the ionospheric currents can be found. Their height is inferred from the study of the ionospheric electron density and conductivity; it can also be measured by rockets. The daily varying airflow in the layer bearing the electric current, at heights from about 90 to 125 km, can to some extent be inferred. The motion is due partly to the sun's thermal and tidal action and partly to the moon's tidal action. Many aspects of the magnetic variations and the inferred ionospheric motions are considered in some detail, especially their seasonal and sunspot-cycle changes and their variations from day to day.

scholarly journals Experimental researches in electricity. Twenty-fourth series. On the possible relation of gravity to electricity

1851 ◽  
Vol 5 ◽  
pp. 994-995 ◽  
Keyword(s):  
Electric Current ◽  
The Other ◽  
Electric Force ◽  
The Earth ◽  
Gravity And Magnetic ◽  
Experimental Relation ◽  
Other Substances ◽  
Fourth Series ◽  
Experimental Researches ◽  
Electric Action

Under the full persuasion that all the forces of nature are mutually dependent, and often, if not always, convertible more or less into each other, the author endeavoured to connect gravity and magnetic or electric action together by experimental results, and though the conclusions were, when cleared from all error, of a negative nature, he still thinks that the principle followed and the experiments themselves deserve to be recorded. Considering that some condition of the results produced by gravity ought to present itself, having a relation to the dual or antithetical character of the magnetic or electric forces, it seemed to the author that the approximation of two gravitating bodies towards each other, and their separation, were the only points which offered this kind of coincidence; and therefore, using the earth as one gravitating body, he employed a cylinder of metal, glass, resins, or other substances, as the other, and endeavoured to ascertain when the latter was allowed to fall, being surrounded by a helix of wire, whether any electric current was generated. Sometimes the cylinder was allowed to fall through the helix; at other times with the helix; and occasionally the helix was made the falling body. But when the various sources of error which sprung up were gradually removed, no traces of electric action remained which could be referred to the power of gravity. In order to obtain a greater effect, an aparatus was employed (being nearly that, used in the 23rd Series of these Researches) by which the effect of raising a body from the earth could be combined with that of a falling body by the fit use of commutators (if any action at all were produced). The apparatus was very good, and gave exceedingly delicate results, as was shown by other consequences of its action; but in respect of gravity it produced no effect whatever. Notwithstanding his failure in obtaining any experimental relation between gravity and magnetic or electric force, the author still expresses his conviction that there is a relation, and his hopes that it may be hereafter practically demonstrated.

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