Laboratory Simulation of Lunar Luminescence

1962 ◽  
Vol 14 ◽  
pp. 441-444 ◽  
Author(s):  
J. E. Geake ◽  
H. Lipson ◽  
M. D. Lumb
Keyword(s):  
Science And Technology ◽  
Laboratory Simulation ◽  
The Moon ◽  
Physics Department ◽  
Luminescent Spectrum

Work has recently begun in the Physics Department of the Manchester College of Science and Technology on an attempt to simulate lunar luminescence in the laboratory. This programme is running parallel with that of our colleagues in the Manchester University Astronomy Department, who are making observations of the luminescent spectrum of the Moon itself. Our instruments are as yet only partly completed, but we will describe briefly what they are to consist of, in the hope that we may benefit from the comments of others in the same field, and arrange to co-ordinate our work with theirs.

scholarly journals Untangling the formation and liberation of water in the lunar regolith

2019 ◽  
Vol 116 (23) ◽  
pp. 11165-11170 ◽  
Author(s):  
Cheng Zhu ◽  
Parker B. Crandall ◽  
Jeffrey J. Gillis-Davis ◽  
Hope A. Ishii ◽  
John P. Bradley ◽  
...  
Keyword(s):  
Solar Wind ◽  
Hydroxyl Radicals ◽  
Laboratory Experiments ◽  
Synergistic Effects ◽  
Lunar Regolith ◽  
Laboratory Simulation ◽  
The Moon ◽  
Imaging Studies ◽  
Simulation Experiments ◽  
Proton Implantation

The source of water (H2O) and hydroxyl radicals (OH), identified on the lunar surface, represents a fundamental, unsolved puzzle. The interaction of solar-wind protons with silicates and oxides has been proposed as a key mechanism, but laboratory experiments yield conflicting results that suggest that proton implantation alone is insufficient to generate and liberate water. Here, we demonstrate in laboratory simulation experiments combined with imaging studies that water can be efficiently generated and released through rapid energetic heating like micrometeorite impacts into anhydrous silicates implanted with solar-wind protons. These synergistic effects of solar-wind protons and micrometeorites liberate water at mineral temperatures from 10 to 300 K via vesicles, thus providing evidence of a key mechanism to synthesize water in silicates and advancing our understanding on the origin of water as detected on the Moon and other airless bodies in our solar system such as Mercury and asteroids.

Science and Technology: Shooting for the Moon and a Better, Safer Earth

1998 ◽  
Vol 58 (1) ◽  
pp. 87
Author(s):  
Arthur L. Levine ◽  
W. Henry Lambright ◽  
Edward Wenk
Keyword(s):  
Science And Technology ◽  
The Moon

scholarly journals THE SCOPE OF THE ELEMENTS OF NATURE IN MALAY MATRAS FROM THE ASPECTS OF SYMBOLS AND MEANINGS

2021 ◽  
Vol 3 (6) ◽  
pp. 42-59
Author(s):  
Norazimah Zakaria ◽  
Mazarul Hasan Mohamad Hanapi ◽  
Mohd Amir Mohd Zahari ◽  
Rohayati Junaidi
Keyword(s):  
Social System ◽  
World View ◽  
Science And Technology ◽  
Descriptive Analysis ◽  
Not Given ◽  
The Moon ◽  
The Past ◽  
Self Defense ◽  
The World ◽  
History Of

Mantra is a stanzaic text that explains the world-view and cosmos of humans in relation to unearthly beings. In the age where the utmost importance is put on science and technology, society has not given much attention to the existence of mantras and the values in them. The merits and functions of mantras are frequently debated nowadays. If we glance at the history of the creation of mantras and their roles in the life of the Malay society, mantras are undoubtedly countless in number. They became instruments for medicine, self-defense, beauty, and other areas as well. The objective of this paper is to identify and elaborate the symbols and meanings of the elements of nature used in mantras. This research uses Peirce Theory of Semiotics for the descriptive analysis of the document. In mantras, the practitioner frequently uses elements of the symbols of nature as representations, such as mountains and oceans, depending on the form of mantra used. If mantras are used to beautify oneself or as a love charm, usually beautiful and pleasant elements will be chanted, for example, the moon, sun, stars, and others. Hence, through the use of mantras, the elements of the symbol found in them contain the value of the Malay mind that is seen to give an identity or an actual description of the life of the Malay society in the past. Mantras are seen as very important in society’s social system in the past.

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.

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