scholarly journals The distribution of electricity in thunderclouds

The mechanism of thunderstorms has been the subject of much controversy in recent years, and at the present time there are at least two theories which find considerable support. To arrive at a theory which would satisfy all criticism would be a great advance towards a solution of the more fundamental problem of the circulation of electricity through the atmosphere. The evidence put forward in support of the present theories of the mechanism of thunderstorms is derived almost wholly from observations made at the surface of the earth; in many cases this evidence is ambiguous, and the same observations have, in fact, sometimes been used to support opposing theories. It seemed highly desirable that fresh evidence should be sought, and the most promising line of attack appeared to lie in attempting measurements in and above the thunderclouds instead of confining the observations to ground-level. In 1934, after some preliminary experiments, a simple method of recording the distribution of electricity in thunderclouds by means of instruments attached to sounding balloons was devised at Kew Observatory, and a sufficient number of soundings has now been made to enable some important generalizations to be made. The method of observation and the results obtained are described and discussed in this paper.

Author(s):  
Emily Robins Sharpe

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.


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

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.


1982 ◽  
Vol 19 (A) ◽  
pp. 359-365 ◽  
Author(s):  
David Pollard

The theory of weak convergence has developed into an extensive and useful, but technical, subject. One of its most important applications is in the study of empirical distribution functions: the explication of the asymptotic behavior of the Kolmogorov goodness-of-fit statistic is one of its greatest successes. In this article a simple method for understanding this aspect of the subject is sketched. The starting point is Doob's heuristic approach to the Kolmogorov-Smirnov theorems, and the rigorous justification of that approach offered by Donsker. The ideas can be carried over to other applications of weak convergence theory.


1988 ◽  
Vol 25 (8) ◽  
pp. 1199-1208 ◽  
Author(s):  
J. Tuzo Wilson

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.


2021 ◽  
Vol 39 (11) ◽  
Author(s):  
Wasan Yahia Ahmed ◽  
Suaad Adnan Noaman Al-Shammari ◽  
Ahmed Taher Kadhim Al-Anbagi

The subject of green accounting is one of the modern topics in accounting science, which has received great attention by researchers and writers because of its great role in measuring and disclosing environmental activities and in line with the interests of internal and external users of accounting information.  The research stems from a fundamental problem that taking into account the costs of green accounting within the financial statements of economic units would improve the quality of accounting information provided to users. To achieve the goal of the research, a questionnaire was designed and submitted to the stakeholders of users of information and employees of a number of economic units listed on the Iraq Stock Exchange, as well as the use of different statistical methods and methods to extract results related to the role of information on green accounting in improving the quality of accounting information provided by Before economic units. The research reached several results, the most important of which was the need to take into account the costs of green accounting and manifested within the financial statements of economic units, because of its role in improving the quality of accounting information and commensurate with the interests of users, so it should work to measure those costs and disclosed to contribute to Meet the wishes and interests of users of financial statements.


2017 ◽  
Vol 15 (1) ◽  
pp. 57-69
Author(s):  
O O ALATISE ◽  
A A ADEPOJU

The study of “external” radiation called cosmic radiation that strikes the earth from anywhere beyond the atmosphere is of great importance in radiation protection. All human beings are exposed to an uncontrollable amount of cosmic radiation on the ground level. Those who travel in space, airline crews and frequent flyers are exposed to additional level of cosmic radiation during their trip but unfor-tunately many of them are not aware of this. This workcalculates the exposure of aircrews and fre-quent flyers to cosmic radiation during travel along some air routes to and from Nigeria. The effective dose was computed using a dedicated software CARI 6M, developed by US FAA.The study focuses on the significance of the in-flight exposure, assessment and estimation of in-flight exposure using the dedicated software and some ways of controlling the exposures so that airline crews and frequent flyers are not exposed to fatal levels of radiation.It was observed that the cosmic radiation doses re-ceived by passengers and crew members on board on flights from Lagos Nigeria to countries in Amer-ica were more than what they received en-route countries in Asia.


2021 ◽  
Vol 42 (1) ◽  
pp. 51-63
Author(s):  
Peter O. O. Ottuh ◽  

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.


2021 ◽  
Author(s):  
Jose Saraiva ◽  
Priscila Doran ◽  
Rosa Doran

<p>The Earth is an amazing planet. However, it is also an unpredictable and wild one – part of its many charms. Atmosphere, hydrosphere, geosphere are alive, and can unleash awesome forces on the whole planet, including the biosphere, of which we humans are part. It’s important to make young students aware of the fact that we all live in a planet that was not made specifically for humans, and that it is absolutely imperative that our species learns to respect it and its rhythms and cycles.</p><p>Human settlements are often located in pleasant areas, with little or no concern about their vulnerability to natural disasters. Authorities, local, regional and national, should make preparations to prevent and mitigate their occurrence, of course. But at least as important is the need to create awareness in the citizens, so they can face any disaster and react in a calm and orderly way. That task must begin at an early age. Other than learning to deal with natural disasters and avoiding panic, schoolkids can exert a powerful influence in the adult members of their families and alert them to the measures they should adopt to prepare for any future occurrence.</p><p>In project rAn, EU-funded, we aim to develop a serious game, adjusted to the age of the targets, that will teach them about four types of natural disaster (earthquakes, floods, fires and storms) and make them aware of how to prepare and react in case of one of them striking their city or village. The game will be easy to play, and given the small age of the players will not feature complex interactions. It will include contributions from teachers and groups of students from all Europe, that will be challenged to create small games on the subject, using the Scratch language.    </p>


1964 ◽  
Vol 42 (4) ◽  
pp. 575-582 ◽  
Author(s):  
James R. Wait

The concept that the concentric region between the earth and the ionosphere acts as a cavity resonator was proposed by Schumann over a decade ago. It is the purpose of this paper to review the theory of these cavity resonances. Some of the assumptions used in current work on the subject are also discussed. An alternative derivation is presented which appears to be more general than any given heretofore.


1910 ◽  
Vol 3 (3) ◽  
pp. 246-257 ◽  
Author(s):  
Edward John Russell
Keyword(s):  

Gilbert White devotes one of his letters to earthworms. “Worms,” he says “ seem to be the great promoters of vegetation, which would “ proceed but lamely without them, by boring, perforating, and loosen-“ing the soil, and rendering it pervious to rains and the fibres of plants, “by drawing straws and stalks of leaves and twigs into it; and, most of “ all, by throwing up such infinite numbers of lumps of earth called “ worm-casts, which, being their excrement, is a fine manure for grain “and grass… the earth without worms would soon become cold, hard-“ bound, and void of fermentation, and consequently sterile.” Sixty years later, in 1837, Darwin published a paper, in which he showed the important part played by worms in the formation of vegetable mould. Further observations were recorded by Hensen in 1877. Agricultural chemists did not, however, generally make use of any of this work, and it was not till 1881 that the publication of Darwin's Earthworms and Vegetable Mould directed so much attention to the subject that the action of earthworms could no longer be disregarded. Several investigations have since been made into the part played by earthworms in promoting fertility, perhaps the best known being those recorded in Wollny's Zersetzung der organischen Stoffe.


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