Modern state of investigations of the propagation of ultralong waves in the earth-ionospheric waveguide channel (review)

1970 ◽  
Vol 13 (3) ◽  
pp. 245-272 ◽  
Author(s):  
G. I. Makarov ◽  
V. V. Novikov ◽  
A. B. Orlov
Keyword(s):  
Waveguide Channel ◽  
Modern State ◽  
Ionospheric Waveguide ◽  
The Earth

Solar spot influence on Earth's molecular processes

2012 ◽  
Vol 12 (1) ◽  
pp. 21-24
Author(s):  
Vladimir K. Evstafyev
Keyword(s):  
Solar Activity ◽  
Molecular System ◽  
Molecular Target ◽  
Modern State ◽  
Biological Processes ◽  
Molecular Processes ◽  
Biological Objects ◽  
System A ◽  
The Earth ◽  
Long Time

AbstractThe paper considers the two-century-old problem of how solar spots influence biological objects on the Earth. It describes the modern state of the kT-problem, which for a long time has been the most difficult obstacle in explaining solar activity effects. Based on recent advances in spin chemistry and magnetoplasticity physics, it is shown that a ‘molecular target’ sensitive to weak electromagnetic fields is spins in non-equilibrial states of the molecular system. A way of how solar spots can influence Earth's molecular, including biological, processes through a ‘transparency window’ in the Earth's atmosphere is proposed.

Worlds Beyond

2017 ◽  
Author(s):  
Kai Erikson
Keyword(s):  
Social Life ◽  
Modern State ◽  
Strong Impact ◽  
Global Networks ◽  
The Earth ◽  
Number Of Factors ◽  
Economic Forces ◽  
The World ◽  
Global Corporations ◽  
European Colonization

This chapter examines three new social formations—“places” in at least a sense—that have exerted a strong impact on our times: the emergence of the modern state and the sometimes tense relationship that can develop between peoplehood and statehood, the colonization of a large portion of the world, and globalization. It first describes a number of factors that provided the thrust for European colonization before discussing the benefits of civilization. It then locates the modern state on our map of “places” in human social life and considers the emergence of global networks that now stretch across the surfaces of the earth, along with the economic forces that drive globalization such as capitalism. It also looks at social formations that connect people together but have no obvious location on the earth's surface, including global corporations and sovereign states, and the reappearance of the folk ethos.

The motion of a lunar orbiter

1966 ◽  
Vol 25 ◽  
pp. 373
Author(s):  
Y. Kozai
Keyword(s):  
Degrees Of Freedom ◽  
Dimensional Space ◽  
Artificial Satellite ◽  
Equations Of Motion ◽  
Triaxial Ellipsoid ◽  
The Moon ◽  
Secular Motion ◽  
The Earth ◽  
Close Satellite ◽  
The Mean

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.

Formation of Lunar Craters and Bright Rays as a Result of Meteorite Impacts

1962 ◽  
Vol 14 ◽  
pp. 415-418
Author(s):  
K. P. Stanyukovich ◽  
V. A. Bronshten
Keyword(s):  
Explosive Charge ◽  
The Moon ◽  
Meteorite Impacts ◽  
The Earth ◽  
Lunar Craters ◽  
The Impact

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.

The Origin of the Moon

1962 ◽  
Vol 14 ◽  
pp. 149-155 ◽  
Author(s):  
E. L. Ruskol
Keyword(s):  
Chemical Composition ◽  
Solar System ◽  
The Moon ◽  
The Earth ◽  
The Difference ◽  
Origin Of The Moon

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.

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