scholarly journals Light-Filtering Ring and Novel Telescope: Super Eyes for Deep Space

2021 ◽  
Author(s):  
Shuquan Zhang ◽  
Xuqiang Duan ◽  
Ye Wang ◽  
Dongkun Luo ◽  
Zhu Sun
Keyword(s):  
Astronomical Observation ◽  
Deep Space ◽  
New Type ◽  
Ancient Times ◽  
Large Telescopes ◽  
The Universe

Abstract Exploring the universe has been a dream of mankind since ancient times, and observation with a telescope is among the most economical way. However, using current large telescopes is far away from being “economical”, and their observation capabilities are limited. In this regard, this article puts forward a new principle of telescope, designs a sophisticated light combing system-Light-filtering Ring, and conceives a new type of telescope-Light-filtering 10 Telescope. Compared with current telescopes, Light-filtering Telescope has amazing observation ability and smaller size, which makes it naturally suitable for detecting dim cosmic targets in deep space. Once successfully used, it will greatly expand the horizons of astronomical observation and save tens of billions of dollars in the field.

Symbolic Macroconcept of the Universe in the Aspect of the First Cognitive Sign in Russian Linguoculture

2021 ◽  
Vol 16 (1) ◽  
pp. 92-101
Author(s):  
Marina V. Pimenova ◽  
◽  
Aigul A. Bakirova ◽  
Keyword(s):  
Middle Part ◽  
Russian Language ◽  
The World ◽  
Symbolic Meanings ◽  
New Type ◽  
Human World ◽  
Internal Volume ◽  
Definition Of ◽  
Universe Structure ◽  
The Universe

The article analyzes the cognitive signs of the macroconcept universe in Russian linguoculture. The relevance of the research is determined by the prospect of studying a new type of mental structures - symbolic macroconcepts. The purpose of the article is to describe the specifics of the macroconcept universe structure formation from the standpoint of the definition of syncretic primordial signs. The main methods in the work are the historical and etymological analysis of the studied macroconcept representative, descriptive and interpretive methods. During the study, seven motivating signs of the macroconcept universe were noted: 'earth', 'live', ‘world’，‘inhabit’，‘inhabited’，‘settlement’，‘light’. All identified motivating signs are syncretic symbolic primordial signs 'house' (conceptum, according to V. V. Kolesov). Motivating signs express two main symbolic meanings of Russian linguoculture: home is a place where people live, settle; home is the world of people and all living beings, this world-light (unlike that world-light where the souls of the dead go: that world-light is located in the sky), it is built on earth. The macroconcept universe is objectified by erased metaphors of a closed space (in particular, the metaphor of a key), which has an internal volume, center-middle, limits, parts, edges, corners, people live in this house, they live and exist in it, it is inhabited and settle down in Russian linguoculture. The model of the universe in the Russian language picture of the world is three-parted: the middle part in it represents the human world, in which the principle of anthropocentrism is manifested - a person measures space and chooses himself as a reference point. The syncretic primary sign ‘house’ unites in itself all the motivating signs of the studied macroconcept, keeping their relevance to our days. Keywords: macroconcept, motivating signs, first sign, language picture of the world, linguoculture, comparative studies

scholarly journals On generalized Lemaitre–Tolman–Bondi metric: Fractal matter at the end of matter–antimatter recombination

2021 ◽  
pp. 2150086
Author(s):  
Sergio L. Cacciatori ◽  
Alessio Marrani ◽  
Federico Re
Keyword(s):  
Dark Matter ◽  
Relativistic Effects ◽  
Partial Explanation ◽  
First Order ◽  
Acceleration Of The Universe ◽  
Particular Solution ◽  
Ancient Times ◽  
The Universe ◽  
Recombination Epoch ◽  
Ltb Metric

Many recent researches have investigated the deviations from the Friedmannian cosmological model, as well as their consequences on unexplained cosmological phenomena, such as dark matter and the acceleration of the Universe. On one hand, a first-order perturbative study of matter inhomogeneity returned a partial explanation of dark matter and dark energy, as relativistic effects due to the retarded potentials of far objects. On the other hand, the fractal cosmology, now approximated by a Lemaitre–Tolman–Bondi (LTB) metric, results in distortions of the luminosity distances of SNe Ia, explaining the acceleration as apparent. In this work, we extend the LTB metric to ancient times. The origin of the fractal distribution of matter is explained as the matter remnant after the matter–antimatter recombination epoch. We show that the evolution of such a inhomogeneity necessarily requires a dynamical generalization of LTB, and we propose a particular solution.

Reflecții asupra conceptului de artă obiectivă în contextul artei contemporane

2020 ◽  
Vol 65 (1) ◽  
pp. 175-184
Author(s):  
Carmen Belean
Keyword(s):  
Contemporary Art ◽  
Arbitrary Element ◽  
Human Life ◽  
The Other ◽  
Future Generations ◽  
Literary Sources ◽  
Art Forms ◽  
Ancient Times ◽  
The Universe

"Reflections on the concept of objective art in the context of contemporary art. Objective art communicates about the human being and his/her place in the universe, about the cosmic laws and the role they play in human life and provide clues as to how man can relate to them. From literary sources attesting to the idea that art in its origin had the role of transmitting knowledge to future generations, we deduce that in ancient times all art forms could be read like a book, and those who knew how to read, fully understood the meaning of the knowledge that was incorporated in these art forms. Nevertheless, there are two forms of art, one very different from the other: objective art and subjective art. Everything that we call art today is subjective art. Objective art is the authentic work resulted from the deliberate, premeditated efforts of a conscious artist. In the act of his creation, the artist avoids or eliminates any subjective or arbitrary element and the impression that such a work evokes in others is always defined. Keywords: objective art, the art of antiquity, contemporary art "

scholarly journals The Unsolved Problem of Stellar Origins

1996 ◽  
Vol 169 ◽  
pp. 533-549
Author(s):  
Charles J. Lada
Keyword(s):  
Twentieth Century ◽  
Science Fiction ◽  
High Energy Physics ◽  
Gamma Ray ◽  
High Energy ◽  
Giant Molecular Clouds ◽  
Observational Astronomy ◽  
History Of ◽  
Large Telescopes ◽  
The Universe

We now stand at the threshold of the 21st century having witnessed perhaps the greatest era of astronomical discovery in the history of mankind. During the twentieth century the subject of astronomy was revolutionized and completely transformed by technology and physics. Advances in technology that produced radio astronomy, infrared astronomy, UV, X and γ ray astronomy, large telescopes on the ground, in balloons, aircraft and space coupled with advances in nuclear, atomic and high energy physics forever changed the way in which the universe is viewed. Indeed, it is altogether likely that future historians of science will consider the twentieth century as the Golden Age of observational astronomy. As a measure of how far we have come in the last 100 years, recall that at the turn of this century the nature of spiral nebulae and of the Milky Way itself as an island universe were not yet revealed. The expansion of the universe and the microwave background were not yet discovered and exotic objects such as quasars, pulsars, gamma-ray bursters and black holes were not even envisioned by the most imaginative authors of science fiction. The interstellar medium, with its giant molecular clouds, magnetic fields and obscuring dust was unknown. Not even the nature of stars, these most fundamental objects of the astronomical universe, was understood.

scholarly journals Stellar populations in the highest redshift galaxies

2015 ◽  
Vol 11 (A29B) ◽  
pp. 197-198
Author(s):  
Andrew J. Bunker
Keyword(s):  
Galaxy Evolution ◽  
High Redshift ◽  
Stellar Populations ◽  
Mass Function ◽  
Initial Mass Function ◽  
Star Forming ◽  
Near Ir ◽  
James Webb Space Telescope ◽  
Large Telescopes ◽  
The Universe

AbstractI discuss stellar populations in galaxies at high redshift (z > 6), in particular the blue rest-frame UV colours which have been detected in recent years through near-IR imaging with HST. These spectral slopes of β < −2 are much more blue than star-forming galaxies at lower redshift, and may suggest less dust obscuration, lower metallicity or perhaps a different initial mass function. I describe current work on the luminosity function of high redshift star- forming galaxies, the evolution of the fraction of strong Lyman-α emitters in this population, and the contribution of the ionizing photon budget from such galaxies towards the reionization of the Universe. I also describe constraints placed by Spitzer/IRAC on stellar populations in galaxies within the first billion years, and look towards future developments in spectroscopy with Extremely Large Telescopes and the James Webb Space Telescope, including the JWST/NIRSpec GTO programme on galaxy evolution at high redshift.

scholarly journals Do Low Luminosity Stars Matter?

2009 ◽  
Vol 5 (H15) ◽  
pp. 47-60
Author(s):  
María Teresa Ruiz
Keyword(s):  
White Dwarf ◽  
Galactic Plane ◽  
M Dwarfs ◽  
Low Mass Stars ◽  
Missing Mass ◽  
Low Mass ◽  
Astronomical Research ◽  
Red Giant ◽  
Large Telescopes ◽  
The Universe

AbstractHistorically, low luminosity stars have attracted very little attention, in part because they are difficult to see except with large telescopes, however, by neglecting to study them we are leaving out the vast majority of stars in the Universe. Low mass stars evolve very slowly, it takes them trillions of years to burn their hydrogen, after which, they just turn into a He white dwarf, without ever going through the red giant phase. This lack of observable evolution partly explains the lack of interest in them. The search for the “missing mass” in the galactic plane turned things around and during the 60s and 70s the search for large M/L objects placed M-dwarfs and cool WDs among objects of astrophysical interest. New fields of astronomical research, like BDs and exoplanets appeared as spin-offs from efforts to find the “missing mass”. The search for halo white dwarfs, believed to be responsible for the observed microlensing events, is pursued by several groups. The progress in these last few years has been tremendous, here I present highlights some of the great successes in the field and point to some of the still unsolved issues.

scholarly journals Hestia: The Indo-European Goddess of the Cosmic Central Fire

2019 ◽  
Vol 23 (1) ◽  
pp. 3-19
Author(s):  
Marcello De Martino
Keyword(s):  
The Moon ◽  
European Language ◽  
The Earth ◽  
Unique Model ◽  
Celestial Bodies ◽  
Astronomical Theory ◽  
Ancient Times ◽  
To Come ◽  
Atmospheric Phenomena ◽  
The Universe

The Pythagorean Philolaus of Croton (470-390 BCE) created a unique model of the Universe and he placed at its centre a ‘fire’, around which the spheres of the Earth, the Counter-Earth, the five planets, the Sun, the Moon and the outermost sphere of fixed stars, also viewed as fire but of an ‘aethereal’ kind, were revolving. This system has been considered as a step towards the heliocentric model of Aristarchus of Samos (310-230 BCE), the astronomical theory opposed to the geocentric system, which already was the communis opinio at that time and would be so for many centuries to come: but is that really so? In fact, comparing the Greek data with those of other ancient peoples of Indo-European language, it can be assumed that the ‘pyrocentric’ system is the last embodiment of a theological tradition going back to ancient times: Hestia, the central fire, was the descendant of an Indo-European goddess of Hearth placed at the centre of the religious and mythological view of a deified Cosmos where the gods were essentially personifications of atmospheric phenomena and of celestial bodies.

scholarly journals Quantum Corrections to the Dynamics of the Gravitational System

2019 ◽  
Vol 64 (12) ◽  
pp. 1143
Author(s):  
V. V. Kuzmichev ◽  
V. E. Kuzmichev
Keyword(s):  
State Vector ◽  
Degrees Of Freedom ◽  
Wave Equations ◽  
The State ◽  
Constrained Systems ◽  
Short Introduction ◽  
Gravitational Systems ◽  
New Type ◽  
The Universe ◽  
Insight Into

A short introduction into the theory of quantum gravitational systems with a finite number of degrees of freedom is given. The theory is based on the method of quantization of constrained systems. The state vector of the system satisfies a set of wave equations which describes the time evolution of the system in the space of quantum fields. The state vector in such an approach can be normalized to unity. The theory permits a generalization to negative values of the scale factor and, being applied to cosmology, leads to the new understanding of the evolution of the universe. It gives an insight into the reasons why the regime of the expansion may change from acceleration to deceleration or vice versa, revealing a new type of quantum forces acting like dark matter and dark energy in the universe.

scholarly journals Interests: Christian and economic views

2012 ◽  
pp. 483-502
Author(s):  
Bosko Mijatovic
Keyword(s):  
The West ◽  
Historical Changes ◽  
Ancient Times ◽  
The Universe

This paper provides a brief overview of the evolution of views on interest from ancient times to the present day. Historical changes, including legal acts prohibiting and restricting interest as well as theological and economic views and disputes about the justification of its existence, are followed. It turned out that life has sought and found ways to bypass bans, and that placing man at the center of the universe after the Renaissance decidedly marked a shift towards the legalization of interest. It was continuously tolerated in Orthodox countries, with less confrontations than in the West.

Sign in / Sign up

Export Citation Format

Share Document