scholarly journals Polygon “Simeiz-Katsively” - changes in the average pole of the Earth and the geomagnetic field over the last century

2019 ◽  
Vol 30 ◽  
pp. 15004
Author(s):  
Larisa Volvach ◽  
Galina Kurbasova ◽  
Andrej Dmytrotsa ◽  
Dmitry Neyachenko
Keyword(s):  
Geomagnetic Field ◽  
Past Century ◽  
Geodetic Coordinates ◽  
The Past ◽  
The North ◽  
The Earth ◽  
Secular Variations ◽  
North Latitude

The character of changing the trajectory of the middle of the North geographical pole of the Earth's surface over the last century is studied. The peculiarities in the changes of its coordinates are established. The epochs of the appearance of especial points are compared with the epochs of jumps in the data on the parameters of the geomagnetic field. A model of secular variations of geomagnetic declination at a point with geodetic coordinates of 90° north latitude, 0° west longitude is obtained. Coherent relationships have been established between changes in the parameters of the Earth’s middle pole and the geomagnetic field over the past century.

Famous teachers and educators of the first half of the XX century about the problems of the North Caucasian muslim education.

2021 ◽  
Vol 13 (2) ◽  
pp. 208-222
Author(s):  
Nadezhda O. Bleich ◽  
Keyword(s):  
Educational Process ◽  
Point Of View ◽  
Practical Significance ◽  
Past Century ◽  
North Caucasus ◽  
Caucasus Region ◽  
The Past ◽  
The North ◽  
New Type ◽  
Historical Heritage

The article is devoted to the consideration of the worldview positions of famous educators of the past century regarding the state of school education among Muslims of the North Caucasus region. It is proved that the enlighteners advocated the creation of a new type of national non-class school and the construction of the didactic foundations of the educational process in it. The novelty of the work is that, based on the analysis of the views of the advanced intelligentsia of the region, aimed at understanding the current socio-cultural situation, an attempt was made to scientifically understand the problems and prospects for the development of the Muslim educational system of the past from the point of view of the modern scientific paradigm. The practical significance of the publication lies in expanding the understanding of the system of Mohammedan education in the context of its historical heritage, which will help to comprehend modern problems associated with the reform of general and vocational education in the national Muslim republics.

scholarly journals DPRK'S nuclear program

2020 ◽  
Vol 6 (Extra-A) ◽  
pp. 15-22
Author(s):  
Liailia Aidarovna Gainullina ◽  
Rustem Ravilevich Muhametzyanov ◽  
Bulat Aidarovich Gainullin ◽  
Nadiia Almazovna Galiautdinova
Keyword(s):  
Korean Peninsula ◽  
Northeast Asia ◽  
Republic Of Korea ◽  
Past Century ◽  
Nuclear Program ◽  
Korean People ◽  
Existing Problems ◽  
The Past ◽  
The North ◽  
Bilateral Relations

Historically, in the eyes of the Korean people, Japan is an antagonistic state that has brought them many troubles in the past century. Relations between Japan and the Democratic People’s Republic of Korea (DPRK) are fundamental in terms of security in the Northeast Asia (NEA) region, since the decision on the DPRK nuclear missile program and on the denuclearization of the Korean Peninsula is one of the pillars of achieving that very security throughout the region. The period, we consider in this study, from 1996 to 2006, is of significant importance, since a thorough analysis of the events of those years is important for understanding the root of existing problems in bilateral relations between Japan and North Korea. The present analysis on the behavioral lines in the solution of the North Korean nuclear missile program may contribute to the choice the best way to normalize relations between the two countries.    

The strength of the Earth’s magnetic field from Pre-Pottery to Pottery Neolithic, Jordan

2021 ◽  
Author(s):  
Anita Di Chiara ◽  
Lisa Tauxe ◽  
Thomas Levy ◽  
Mohammand Najjar ◽  
Fabio Florindo ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Dipole Moments ◽  
Ancient Egypt ◽  
Archaeological Sites ◽  
Southern Levant ◽  
Short Term ◽  
The Past ◽  
The Earth ◽  
Secular Variations ◽  
Geological Formations

<p>Constraining the secular variations of the Earth’s magnetic field strength in the past is fundamental to understanding short term processes of the geodynamo. Such records constitute a powerful and independent dating tool for archaeological sites and geological formations. In this study, we present 10 new and robust archaeointensity results from Pre-Pottery to Pottery Neolithic and, for one of the first times, flint (burnt chert) from Jordan. Two of these results constitute the oldest archaeointensity data for the entire Levant, ancient Egypt and Mesopotamia extending the archaeomagnetic dating reference for the Holocene. Virtual Axial Dipole Moments (VADM)s show that the Earth’s magnetic field in the Southern Levant was weak (about half the present field) at around 7,600 years BCE, recovering its strength to greater than the present field around 7,100 BCE and gradually weakening again around 5,200 years BCE. In addition, successful results obtained from burnt flint demonstrate the potential of this rarely used material in archaeomagnetic research, in particular for prehistoric periods from the first use of fire to the invention of pottery.</p>

scholarly journals Late Holocene temperature variability in Tasmania inferred from borehole temperature data

2017 ◽  
Vol 13 (6) ◽  
pp. 559-572 ◽  
Author(s):  
Asadusjjaman Suman ◽  
Fiona Dyer ◽  
Duanne White
Keyword(s):  
East Coast ◽  
Past Century ◽  
Borehole Data ◽  
Depth Profiles ◽  
The Past ◽  
North East ◽  
The North ◽  
Borehole Temperature ◽  
Temperature Depth

Abstract. Thirty-six borehole temperature–depth profiles were analysed to reconstruct the ground surface temperature history (GSTH) of eastern Tasmania for the past 5 centuries. We used the singular value decomposition method to invert borehole temperatures to produce temperature histories. The quality of borehole data was classified as high or low based on model misfit. The quality of the borehole data was not dependent on topography or land use. Analysis reveals that three to five high-quality borehole temperature–depth profiles were adequate to reconstruct robust paleotemperature records from any area. Average GSTH reconstructed from Tasmanian boreholes shows temperature increases about 1.2 ± 0.2 °C during the past 5 centuries. Reconstructed temperatures were consistent with meteorological records and other proxy records from Tasmania during their period of overlap. Temperature changes were greatest around the north-east coast and decreased towards the centre of Tasmania. The extension of the East Australian Current (EAC) further south and its strengthening around the north-east coast of Tasmania over the past century was considered a prime driver of warmer temperatures observed in north-east Tasmania.

scholarly journals A Historical Perspective on Measurements of Solar Irradiance

1994 ◽  
Vol 143 ◽  
pp. 1-3
Author(s):  
V. Gaizauskas
Keyword(s):  
Historical Perspective ◽  
Radiant Energy ◽  
Modern Science ◽  
Past Century ◽  
The Sun ◽  
Solar Constant ◽  
Terrestrial Environment ◽  
The Past ◽  
The Earth ◽  
Wide Range

Recent measurements made from platforms in space prove beyond question that the radiant energy received from the Sun at the Earth, once called the ‘solar constant’, fluctuates over a wide range of amplitudes and time scales. The source of that variability and its impact on our terrestrial environment pose major challenges for modern science. We are confronted with a tangled web of facts which requires the combined ingenuity of solar, stellar, planetary and atmospheric scientists to unravel. This brief overview draws attention to key developments during the past century which shaped our concepts about sources of solar variability and their connection with solar activity.

Folk, Faith and Fatherland: Defining the Polish Nation in 1883

2000 ◽  
Vol 28 (3) ◽  
pp. 397-416 ◽  
Author(s):  
Patrice M. Dabrowski
Keyword(s):  
September 11 ◽  
Past Century ◽  
Hundredth Anniversary ◽  
The Past ◽  
The North ◽  
North Wall

On the north wall of Cracow's Church of the Annunciation (better known as the Carmelite Church at Piaski) hangs a long-ignored inscription. A simple stone tablet unprotected from the elements, its words have faded over the past century. One must strain to make out its cryptic message: “On September 11, 1883, Polish villagers gathered in Cracow solemnly celebrated the two hundredth anniversary of the relief of Vienna by John Sobieski, in remembrance of which this stone has been funded.”

scholarly journals Observed rainfall changes in the past century (1901–2019) over the wettest place on the Earth

2020 ◽  
Author(s):  
Jayanarayanan Kuttippurath ◽  
S Murasingh ◽  
Peter A. Stott ◽  
B Balan Sarojini ◽  
Madan K Jha ◽  
...  
Keyword(s):  
Past Century ◽  
The Past ◽  
The Earth

scholarly journals Archaeomagnetic studies at Schmidt institute of physics of the earth, Russian Academy of Sciences: history and main results

2019 ◽  
pp. 123-136
Author(s):  
I. E. Nechasova ◽  
O. V. Pilipenko
Keyword(s):  
Field Intensity ◽  
Geomagnetic Field ◽  
Main Magnetic Field ◽  
International Studies ◽  
The Past ◽  
Russian Academy Of Sciences ◽  
The Earth ◽  
Geomagnetic Field Intensity ◽  
Academy Of Sciences ◽  
Schmidt Institute

The archaeomagnetic studies carried out at the Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences (IPE RAS) provided an important contribution to the international studies of the main magnetic field of the Earth for the past few thousand years. Extensive data on the intensity of geomagnetic field in the past 8000 years were obtained. Four most representative and long time series of the data have been constructed for Eurasia for the Iberian Peninsula, the Caucasus, Central Asia, and Siberia. Unique studies having no analogues in international research have been carried out into rapid variations in the geomagnetic field intensity with characteristic times starting from several tens of years. Based on the analysis of the international data on the ancient geomagnetic field, the spectrum of the variations in the geomagnetic field intensity with the periods ranging from decades to millennia was established and the characteristics ofthe variations whose superposition can describe the pattern of the changes of the geomagnetic field intensity were determined. It was found out that variations with different characteristic times have a differently directed drift, and the “main oscillation” with a characteristic time of 8000 years has an eastern drift.

The Great Migration in Context: The Chicago Experience, 1916–1918

2018 ◽  
Author(s):  
Christopher R. Reed
Keyword(s):  
Black Business ◽  
First World War ◽  
Past Century ◽  
Great Migration ◽  
World War ◽  
Wall Street ◽  
The Past ◽  
The North ◽  
The First World War ◽  
First World

The unanticipated and massive migration of half a million African Americans between 1916 and 1918 from the racially oppressive South to the welcoming North surprised the nation. Directly resulting from the advent of the First World War, the movement of these able-bodied workers provided essential labor to maintain wartime production that sustained the Allied war effort. One-tenth of the people who surged north headed to and remained in Chicago, where their presence challenged the status quo in the areas of employment, external race relations, internal race arrangements, politics, housing, and recreation. Once in the Windy City, this migrant-influenced labor pool expanded with the addition of resident blacks to form the city’s first African American industrial proletariat. Wages for both men and women increased compared to what they had been earning in the South, and local businesses were ready and willing to accommodate these new consumers. A small black business sector became viable and was able to support two banks, and by the mid-1920s, there were multiple stores along Chicago’s State Street forming a virtual “Black Wall Street.” An extant political submachine within Republic Party ranks also increased its power and influence in repeated electoral contests. Importantly, upon scrutiny, the purported social conflict between the Old Settler element and the newcomers was shown to be overblown and inconsequential to black progress. Recent revisionist scholarship over the past two decades has served to minimize the first phase of northward movement and has positioned it within the context of a half-century phenomenon under the labels of the “Second Great Migration” and the “Great Black Migration.” No matter what the designation, the voluntary movement of five to six million blacks from what had been their traditional home to the uncertainty of the North and West between the First World War and the Vietnam conflict stands as both a condemnation of regional oppression of the human spirit and aspirations of millions, and a demonstration of group courage in taking on new challenges in new settings. Although Chicago would prove to be “no crystal stair,” it was on many occasions a land of hope and promise for migrants throughout the past century.

Introduction: The Instability of Scientific Truth

1999 ◽  
Author(s):  
Naomi Oreskes
Keyword(s):  
Underground Water ◽  
Factual Knowledge ◽  
Past Century ◽  
Life And Death ◽  
The Past ◽  
The Earth ◽  
The World ◽  
History Of ◽  
Success Of Science ◽  
Scientific Truth

Scientists are interested in truth. They want to know how the world really is, and they want to use that knowledge to do things in the world. In the earth sciences, this has meant developing methods of observation to determine the shape, structure, and history of the earth and designing instruments to measure, record, predict, and interpret the earth’s physical and chemical processes and properties. The resulting knowledge may be used to find mineral deposits, energy resources, or underground water; to delineate areas of earthquake and volcanic hazard; to isolate radioactive and toxic wastes; or to make inferences and predictions about the earth’s past and future climate. The past century has produced a prodigious amount of factual knowledge about the earth, and prodigious demands are now being placed on that knowledge. The history of science demonstrates, however, that the scientific truths of yesterday are often viewed as misconceptions, and, conversely, that ideas rejected in the past may now be considered true. History is littered with the discarded beliefs of yesteryear, and the present is populated by epistemic resurrections. This realization leads to the central problem of the history and philosophy of science: How are we to evaluate contemporary science’s claims to truth given the perishability of past scientific knowledge? This question is of considerable philosophic interest and of practical import as well. If the truths of today are the falsehoods of tomorrow, what does this say about the nature of scientific truth? And if our knowledge is perishable and incomplete, how can we warrant its use in sensitive social and political decision-making? For many, the success of science is its own best defense. From jet flight to the smallpox vaccine, from CD players to desktop scanners, contemporary life is permeated by technology enabled by scientific insight. We benefit daily from the liberating effects of petroleum found with the aid of geological knowledge, microchips manufactured with the aid of physical knowledge, materials synthesized with the aid of chemical knowledge. Our view of life — and death — is conditioned by the results of scientific research and the capabilities of technological control.

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