Turbulent Motion

1914 ◽  
Vol 34 ◽  
pp. 112-112
Keyword(s):  
Surface Layer ◽  
Great Circle ◽  
Turbulent Motion ◽  
The Earth ◽  
The Subject ◽  
Rotation Of The Earth

In the study which has been the subject of the foregoing pages we have always considered the motion of the air to be regulated by a distribution of pressure balanced by the rotation of the earth, except in regard to the surface layer and one other suggested exception when the momentum of the general westerly circulation was invoked. It should here be noted that by this limitation to what may perhaps be called “great circle motion,” we are considering almost exclusively the circulation above that half of the earth's surface which is north of the northern tropic and south of the southern one.

scholarly journals The concept of time and space in light of reflective activity of human brain

2020 ◽  
pp. 15-38
Author(s):  
Nikolai Andreevich Popov
Keyword(s):  
Active Role ◽  
Problem Of Time ◽  
The Earth ◽  
Time Concepts ◽  
The Subject ◽  
Nature Of Time ◽  
Rotation Of The Earth ◽  
Original Approach ◽  
Objective Concept

The subject of this research is defined by the following question: what allows a person to differentiate time phenomenon from all other; is inconsistency of materialistic world alone enough for encountering the time phenomenon; what are the sources of inseparable link between time with action and space; what is duration and how it differs from time; what is the substantiation for all properties assigned to time; what is the nature of qualities attributed to space? The author proposes an original approach towards solution of the problem of time: before speaking of one or another nature of time, it should be clearly realized which phenomenon is in question, what is the distinctive feature allowing its identification, and what are the form, way and conditions of its manifestation. The article determines an inseparable link of the time phenomenon with the function that people unconsciously assign in the course of their practical activity to sequence of occurrences, formed by the shift in current states of rotation of the Earth. Active role of brain of the subject in “organization” of time phenomenon is revealed alongside. The affiliation of the concept of time to the range of concept-statuses alongside general specificity of the objective concept of such concepts are determined. The conclusion is made that there was a time when time did not exist. The author provides definitions to the fundamental time concepts based on the revealed objective content of these concepts. The fact is stated on the emergence of a completely new concept of time that gives the key to unraveling all of its mysteries.  

The Cartographic Solution of Great Circle Problems

1942 ◽  
Vol 46 (373) ◽  
pp. 4-31 ◽  
Author(s):  
A. J. Dilloway
Keyword(s):  
Special Needs ◽  
Great Circle ◽  
Spherical Trigonometry ◽  
Long Distance ◽  
Traditional Practice ◽  
Map Projection ◽  
Map Projections ◽  
The Earth ◽  
The Subject

During the last twenty years a revival of interest in the subject of map projections has taken the form of a renewed attack upon certain basic limitations which face the cartographer. A necessary stimulus has been provided by the growth of a technique of air navigation, which in many ways has departed from the traditional practice of the marine navigator. From this and other directions emphasis has been laid on the need for precise cartographic representation of distance, direction and position on the earth. But although certain problems may be treated by devising new projections to meet special needs, it is obvious that there is a limit to any purely cartographic approach.The requirements of the new navigation are, briefly, that its methods should be rapid, convenient to use, and of an accuracy consistent with the limitations imposed. The traditional solution by means of spherical trigonometry is thus ruled out on at least two of these counts. In its place, there are now available a number of graphical, mechanical and simplified tabular methods, many of which have no cartographic basis. Since a map projection is an obvious medium for the measurement of spherical relations, the needs of long-distance air navigation have encouraged the adaptation of certain projections in the form of special instruments and devices.

“The heart above the ruins”: Miriam Waddington’s Poetry, the Spanish Civil War, and Jewish Canadian Literature

1969 ◽  
Vol 26 ◽  
Author(s):  
Emily Robins Sharpe
Keyword(s):  
Human Rights ◽  
World War Ii ◽  
Civil War ◽  
Spanish Civil War ◽  
World War ◽  
Canadian Literature ◽  
The Earth ◽  
The Holocaust ◽  
The Subject ◽  
War Consequences

The Jewish Canadian writer Miriam Waddington returned repeatedly to the subject of the Spanish Civil War, searching for hope amid the ruins of Spanish democracy. The conflict, a prelude to World War II, inspired an outpouring of literature and volunteerism. My paper argues for Waddington’s unique poetic perspective, in which she represents the Holocaust as the Spanish Civil War’s outgrowth while highlighting the deeply personal repercussions of the war – consequences for women, for the earth, and for community. Waddington’s poetry connects women’s rights to human rights, Canadian peace to European war, and Jewish persecution to Spanish carnage.

scholarly journals V.—Further Excavations at Lanuvium

Archaeologia ◽  
1892 ◽  
Vol 53 (1) ◽  
pp. 147-154
Author(s):  
Lord Savile
Keyword(s):  
The Earth ◽  
The Subject

Since the last communication on the subject of my excavations at Lanuvium, which the Society of Antiquaries did me the honour to publish in 1886, those excavations have been carried on continuously, but very slowly, in consequence of the difficulties arising from the necessity of devising some means for disposing of the earth extracted in the course of excavation.

The Terrestrial Coordinate System and International Earth-rotation Services

1985 ◽  
Vol 38 (02) ◽  
pp. 216-217
Author(s):  
G. A. Wilkins
Keyword(s):  
Coordinate System ◽  
Earth Rotation ◽  
Reference System ◽  
New Techniques ◽  
Crustal Movements ◽  
Earth Observations ◽  
The Earth ◽  
External Reference ◽  
External Objects ◽  
Rotation Of The Earth

New techniques of measurement make it possible in 1984 to determine positions on the surface of the Earth to a much higher precision than was possible in 1884. If we look beyond the requirements of navigation we can see useful applications of global geodetic positioning to centimetric accuracy for such purposes as the control of mapping and the study of crustal movements. These new techniques depend upon observations of external objects, such as satellites or quasars rather than stars, and they require that the positions of these objects and the orientation of the surface of the Earth are both known with respect to an appropriate external reference system that is ‘fixed’ in space. We need networks of observing stations and analysis centres that monitor the motions of the external objects and the rotation of the Earth. Observations of stars by a transit circle are no longer adequate for this purpose.

Convection tectonics: some possible effects upon the Earth's surface of flow from the deep mantle

1988 ◽  
Vol 25 (8) ◽  
pp. 1199-1208 ◽  
Author(s):  
J. Tuzo Wilson
Keyword(s):  
Land Surface ◽  
Angle Of Incidence ◽  
Gulf Of Aden ◽  
Upward Flow ◽  
New Techniques ◽  
Ocean Ridges ◽  
The Earth ◽  
Mid Ocean Ridge ◽  
The Subject ◽  
Ocean Ridge

Until a little more than a century ago the land surface not only was the only part of the Earth accessible to humans but also was the only part for which geophysical and geochemical methods could then provide any details. Since then scientists have developed ways to study the ocean floors and some details of the interior of the Earth to ever greater depths. These discoveries have followed one another more and more rapidly, and now results have been obtained from all depths of the Earth.New methods have not contradicted or greatly disturbed either old methods or old results. Hence, it has been easy to overlook the great importance of these recent findings.Within about the last 5 years the new techniques have mapped the pattern of convection currents in the mantle and shown that these rise from great depths to the surface. Even though the results are still incomplete and are the subject of debate, enough is known to show that the convection currents take two quite different modes. One of these breaks the strong lithosphere; the other moves surface fragments and plates about.It is pointed out that if expanding mid-ocean ridges move continents and plates, geometrical considerations demand that the expanding ridges must themselves migrate. Hence, collisions between ridges and plates are likely to have occurred often during geological time.Twenty years ago it was shown that the effect of a "mid-ocean ridge in the mouth of the Gulf of Aden" was to enter and rift the continent. This paper points out some of the conditions under which such collisions occur and in particular shows that the angle of incidence between a ridge and a coastline has important consequences upon the result. Several past and present cases are used to illustrate that collisions at right angles tend to produce rifting; collisions at oblique angles appear to terminate in the lithosphere in coastal shears, creating displaced terrane, but in the mantle the upward flow may continue to uplift the lithosphere far inland and produce important surface effects; collisions between coasts and mid-ocean ridges parallel to them produce hot uplifts moving inland. For a time these upwellings push thrusts and folds ahead of them, but they appear to die down before reaching cratons.

Sensing the rotation of the Earth

1992 ◽  
Vol 30 (2) ◽  
pp. 111-111
Author(s):  
H. Richard Crane
Keyword(s):  
The Earth ◽  
Rotation Of The Earth

Evwie (Kola Nut) and its socio-religious values among Idjerhe people of Nigeria PEOPLE OF NIGERIA

2021 ◽  
Vol 42 (1) ◽  
pp. 51-63
Author(s):  
Peter O. O. Ottuh ◽  
Keyword(s):  
West Africa ◽  
Critical Review ◽  
Religious Values ◽  
Mutual Trust ◽  
Religious Activities ◽  
Edible Fruit ◽  
The Earth ◽  
The People ◽  
The Subject ◽  
Participatory Observation

The popular edible fruit called kola nut that is found all over the Earth is native to the people of West Africa. In Idjerhe (Jesse) culture, the kola nut is part of the people’s traditional religious activities and spirituality. The presentation, breaking, and eating of the kola nut signifies hospitality, friendship, love, mutual trust, manliness, peace, acceptance, happiness, fellowship, and communion with the gods and spirits. These socio-religious values of the kola nut among the Idjerhe people are not well documented,however, and this paper aims to fill the lacuna. It employs participatory observation and oral interviews, supported by a critical review of scholarly literature on the subject. The research posits that churches can use the kola nut as a Eucharistic element that would be meaningful and indigenous to the Idjerhe people.

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