scholarly journals The cosmic molybdenum-neodymium isotope correlation and the building material of the Earth

2017 ◽  
pp. 170-178 ◽  
Author(s):  
J. Render ◽  
M. Fischer-Gödde ◽  
C. Burkhardt ◽  
T. Kleine
Britannia ◽  
1972 ◽  
Vol 3 ◽  
pp. 352-367 ◽  
Author(s):  
R. P. Wright ◽  
M. W. C. Hassall

Wanborough, Wilts. (SU 194853). For this defixio (curse) (FIG. 22) see the report by Mr. J. Rea printed on pp. 363-7 as an Appendix.Cirencester {Corinium, SP 028012), Gloucestershire (PL. XXIX, A). Oolitic limestone tombstone 0.65 by 1.21 by 0.26 m found in 1971 with two others by contractors carrying out demolition in School Lane on the site of the Stepped Stairs development (see above, p. 339). The three came from the rear of the earth rampart forming part of the defences of the town and may have been intended as building material (for the construction of bastions), which was then discarded. The tombstone, which tapers slightly towards the top, is surmounted by a triangular pediment within which is a lunette in relief. Pediment and die are surrounded by a plain border which has suffered some damage, particularly to the right of the lower part of the die.


Author(s):  
Bucur Dan Pericleanu ◽  
Mihaela Pericleanu

Abstract This paper presents a synthesis of research carried out by authors on local materials used in construction over time in South Eastern Romania. The earth in various forms and technologies has been a perfectible building material that by technologies and specific procedures confers resistance and structural stability. For the research the authors have selected a few specific types of buildings detailing on structural compliance, their sustainability and the factors that led to the depreciation of the building.


2017 ◽  
Vol 4 ◽  
pp. 112-135
Author(s):  
Lucia Esperanza Garzón

Resumen: La tierra es un material de construcción milenario. Se desarrolló con diversas técnicas en todos los continentes, climas, culturas y está presente hasta nuestros días. Avances tecnológicos y normativos respaldan el uso de este material, ya que ayuda a mitigar el cambio climático, aporta a la disminución de energía, está en un proceso de desarrollo científico. Es urgente revaluar y visibilizar sus potencialidades y limitaciones, por ser un recurso que aunque está inserto en la memoria y hace parte la sabiduría ancestral de los pueblos, se desconoce y aún tiene mucha resistencia en la sociedad y en el mercado. ___Palabras clave: Arquitectura con tierra,  bio-construcción, bahareque, economía energética, Eco-materiales. ___Abstract: The earth is an ancient building material. It was developed with diverse techniques in all the continents, climates, cultures and is present until our days. Technological and normative advances support the use of this material, as it helps to mitigate climate change, contributes to the decrease of energy, is in a process of scientific development. It is urgent to re-evaluate and make visible its potentialities and limitations, because it is a resource that although it is inserted in the memory and forms part of the ancestral wisdom of the people, is unknown and still has much resistance in society and in the market. ___Keywords: Architecture with earth, bio-construction, bahareque, energy economy, Eco-materials. ___Resumo: A Terra é um antigo material de construção. Foi desenvolvido com diversas técnicas em todos os continentes, climas, culturas e está presente até nossos dias. Os avanços tecnológicos e normativos apoiam o uso deste material, pois ajuda a mitigar as mudanças climáticas, contribui para a diminuição da energia, está em um processo de desenvolvimento científico. É urgente reavaliar e visibilizar suas potencialidades e limitações, como um recurso que, apesar de inserido na memória e faz parte da sabedoria ancestral das pessoas, é desconhecido e ainda tem muita resistência na sociedade e no mercado. ___Palavras-chave: Arquitetura com terra, bio-construção, bahareque, economia de energia, Eco-materiais. ___Recibido: 15 de agosto 2017. Aceptado:20 de octubre de 2017.


2018 ◽  
Vol 5 (1) ◽  
pp. 22
Author(s):  
Han Zhang

<p><em>The mountain city is the one that is built as a kind of fortifications in the mountains by Koguryo people. This kind of city is widely distributed in the region of China’s Liaoning Province, Jilin Province and the northern part of Korean peninsula.</em></p><p><em>Currently the Koguryo mountain cities seen in China are mostly stone-built and earth-built, and some are stone-and-earth mixed construction. This is because its regime’s early land is located in the mountains, and the use of stone is a native aboriginal tradition, but the later occupy is the plains, so the choice of building material became the earth according to local conditions.</em></p><em>Recently, the author has found that there are some remains of the wooden fence in some small mountain cities, whose defense system are built by contacting the stone with the wooden fence, during the survey on the mountain city in Liaoning Province. The wooden fence should be an important part of the fortifications of the Koguryo mountain cities, and the cave stone relics previously discovered should also be related to this.</em>


1966 ◽  
Vol 25 ◽  
pp. 373
Author(s):  
Y. Kozai

The motion of an artificial satellite around the Moon is much more complicated than that around the Earth, since the shape of the Moon is a triaxial ellipsoid and the effect of the Earth on the motion is very important even for a very close satellite.The differential equations of motion of the satellite are written in canonical form of three degrees of freedom with time depending Hamiltonian. By eliminating short-periodic terms depending on the mean longitude of the satellite and by assuming that the Earth is moving on the lunar equator, however, the equations are reduced to those of two degrees of freedom with an energy integral.Since the mean motion of the Earth around the Moon is more rapid than the secular motion of the argument of pericentre of the satellite by a factor of one order, the terms depending on the longitude of the Earth can be eliminated, and the degree of freedom is reduced to one.Then the motion can be discussed by drawing equi-energy curves in two-dimensional space. According to these figures satellites with high inclination have large possibilities of falling down to the lunar surface even if the initial eccentricities are very small.The principal properties of the motion are not changed even if plausible values ofJ3andJ4of the Moon are included.This paper has been published in Publ. astr. Soc.Japan15, 301, 1963.


1962 ◽  
Vol 14 ◽  
pp. 415-418
Author(s):  
K. P. Stanyukovich ◽  
V. A. Bronshten

The phenomena accompanying the impact of large meteorites on the surface of the Moon or of the Earth can be examined on the basis of the theory of explosive phenomena if we assume that, instead of an exploding meteorite moving inside the rock, we have an explosive charge (equivalent in energy), situated at a certain distance under the surface.


1962 ◽  
Vol 14 ◽  
pp. 149-155 ◽  
Author(s):  
E. L. Ruskol

The difference between average densities of the Moon and Earth was interpreted in the preceding report by Professor H. Urey as indicating a difference in their chemical composition. Therefore, Urey assumes the Moon's formation to have taken place far away from the Earth, under conditions differing substantially from the conditions of Earth's formation. In such a case, the Earth should have captured the Moon. As is admitted by Professor Urey himself, such a capture is a very improbable event. In addition, an assumption that the “lunar” dimensions were representative of protoplanetary bodies in the entire solar system encounters great difficulties.


1962 ◽  
Vol 14 ◽  
pp. 133-148 ◽  
Author(s):  
Harold C. Urey

During the last 10 years, the writer has presented evidence indicating that the Moon was captured by the Earth and that the large collisions with its surface occurred within a surprisingly short period of time. These observations have been a continuous preoccupation during the past years and some explanation that seemed physically possible and reasonably probable has been sought.


1962 ◽  
Vol 14 ◽  
pp. 39-44
Author(s):  
A. V. Markov

Notwithstanding the fact that a number of defects and distortions, introduced in transmission of the images of the latter to the Earth, mar the negatives of the reverse side of the Moon, indirectly obtained on 7 October 1959 by the automatic interplanetary station (AIS), it was possible to use the photometric measurements of the secondary (terrestrial) positives of the reverse side of the Moon in the experiment of the first comparison of the characteristics of the surfaces of the visible and invisible hemispheres of the Moon.


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