Designing a New Space-borne Interferometer to Probe the History of Our Universe

2021 ◽  
Vol 1 ◽  
Keyword(s):  
Gravitational Waves ◽  
Laser Interferometer ◽  
History Of ◽  
New Space ◽  
Astrophysical Phenomena

Scientists present a new design for a space-born laser interferometer that could detect gravitational waves below 10 Hz, letting us probe into new astrophysical phenomena.

scholarly journals Small-Sized Interferometer with Fabry–Perot Resonators for Gravitational Wave Detection

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1877
Author(s):  
Nikolai Petrov ◽  
Vladislav Pustovoit
Keyword(s):  
Correlation Function ◽  
Gravitational Waves ◽  
Laser Interferometer ◽  
Zero Order ◽  
Wave Detection ◽  
Resonant Modes ◽  
Fabry Perot ◽  
Spatially Distributed ◽  
Wave Laser ◽  
Higher Sensitivity

It is highly desirable to have a compact laser interferometer for detecting gravitational waves. Here, a small-sized tabletop laser interferometer with Fabry–Perot resonators consisting of two spatially distributed “mirrors” for detecting gravitational waves is proposed. It is shown that the spectral resolution of 10−23 cm−1 can be achieved at a distance between mirrors of only 1–3 m. The influence of light absorption in crystals on the limiting resolution of such resonators is also studied. A higher sensitivity of the interferometer to shorter-wave laser radiation is shown. A method for detecting gravitational waves is proposed based on the measurement of the correlation function of the radiation intensities of non-zero-order resonant modes from the two arms of the Mach–Zehnder interferometer.

Virgo: a laser interferometer to detect gravitational waves

2012 ◽  
Vol 7 (03) ◽  
pp. P03012-P03012 ◽  
Author(s):  
T Accadia ◽  
F Acernese ◽  
M Alshourbagy ◽  
P Amico ◽  
F Antonucci ◽  
...  
Keyword(s):  
Gravitational Waves ◽  
Laser Interferometer

scholarly journals Membangun Peradaban Sufistik melalui Hermeneutika Schleiermacher pada Ekspresi-Ekspresi Sejarah Perjuangan Imam Husain

ESOTERIK ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 90
Author(s):  
Fadhlu Rahman ◽  
Dicky Darmawan
Keyword(s):  
Social Order ◽  
Descriptive Analysis ◽  
The Enlightenment ◽  
Spiritual Civilization ◽  
Analysis Methods ◽  
History Of ◽  
New Space ◽  
New Perspective ◽  
Definition Of ◽  
Western Perspective

<p class="06IsiAbstrak">The modern western perspective initiated by the renaissance and the enlightenment century successfully couped the reality of God. This was carried out by some western intellectuals and thinkers, which ultimately gave obscurity to the human concept. The obscurity of this concept then has implications for the meaning of the progress of human civilization. This further gives serious problems to almost the entire social order.   Husain's struggle as the eternal history of humanity interpreted through Hermeneutics Scheleiermacher provides another perspective on human concepts and the progress of civilization. The monotheistic values they contain glance at the sides of spirituality as a measure of the progress of civilization. From it the definition of civilization gained new space and paved the way for human potentials that were inherently the cornerstone of the progress of civilization. This paper tries to uncover the values of Imam Husain's struggle in Karbala which is interpreted through Schleiermacher's psychological and grammatical interpretation and contextualizes it with the concept of Coomaraswamy spiritual civilization, as a foundation for the meaning of civilization using historical and descriptive analysis methods. So that the paradigm of the progress of civilization gets an alternative new perspective, and spirituality can be used as a measure of the progress of civilization.</p>

scholarly journals Gravitational Fields and Gravitational Waves

2021 ◽  
Author(s):  
Tony Yuan
Keyword(s):  
Gravitational Field ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Doppler Effect ◽  
Gravitational Force ◽  
Laser Interferometer ◽  
Speed Of Light ◽  
Gravitational Fields ◽  
Light Waves ◽  
Research Questions

The relative velocity between objects with finite velocity affects the reaction between them. This effect is known as general Doppler effect. The Laser Interferometer Gravitational-Wave Observatory (LIGO) discovered gravitational waves and found their speed to be equal to the speed of light c. Gravitational waves are generated following a disturbance in the gravitational field; they affect the gravitational force on an object. Just as light waves are subject to the Doppler effect, so are gravitational waves. This article explores the following research questions concerning gravitational waves: What is the spatial distribution of gravitational waves? Can the speed of a gravitational wave represent the speed of the gravitational field (the speed of the action of the gravitational field upon the object)? What is the speed of the gravitational field? Do gravitational waves caused by the revolution of the Sun affect planetary precession? Can we modify Newton&rsquo;s gravitational equation through the influence of gravitational waves?

The Feminization of Etiquette Literature: Foucault, Mechanisms of Social Change, and the Paradoxes of Empowerment

1996 ◽  
Vol 39 (3) ◽  
pp. 417-434 ◽  
Author(s):  
Jorge Arditi
Keyword(s):  
United States ◽  
Social Change ◽  
19Th Century ◽  
The United States ◽  
The Other ◽  
Women’S Empowerment ◽  
Discursive Space ◽  
History Of ◽  
New Space ◽  
The 19Th Century

This paper explores the opening of a discursive space within the etiquette literature in the United States during the 19th century and how women used this space as a vehicle of empowerment. It identifies two major strategies of empowerment. First, the use or appropriation of existing discourses that can help redefine the “other” within an hegemonic space. Second, and more importantly, the transformation of that space in shifting the lines by which differentiation is produced to begin with. Admittedly, these strategies are neither unique nor the most important in the history of women's empowerment. But this paper argues that the new discourses formulated by women helped forge a new space within which women ceased being the “other,” and helped give body to a concept of womanhood as defined by a group of women, regardless of how idiosyncratic that group might have been.

scholarly journals The gravitational-wave physics

2017 ◽  
Vol 4 (5) ◽  
pp. 687-706 ◽  
Author(s):  
Rong-Gen Cai ◽  
Zhoujian Cao ◽  
Zong-Kuan Guo ◽  
Shao-Jiang Wang ◽  
Tao Yang
Keyword(s):  
Gravitational Wave ◽  
Gravitational Waves ◽  
Laser Interferometer ◽  
Direct Detection ◽  
Fundamental Physics ◽  
First Order ◽  
Compact Binary ◽  
First Order Phase Transition ◽  
First Order Phase ◽  
The Universe

Abstract The direct detection of gravitational wave by Laser Interferometer Gravitational-Wave Observatory indicates the coming of the era of gravitational-wave astronomy and gravitational-wave cosmology. It is expected that more and more gravitational-wave events will be detected by currently existing and planned gravitational-wave detectors. The gravitational waves open a new window to explore the Universe and various mysteries will be disclosed through the gravitational-wave detection, combined with other cosmological probes. The gravitational-wave physics is not only related to gravitation theory, but also is closely tied to fundamental physics, cosmology and astrophysics. In this review article, three kinds of sources of gravitational waves and relevant physics will be discussed, namely gravitational waves produced during the inflation and preheating phases of the Universe, the gravitational waves produced during the first-order phase transition as the Universe cools down and the gravitational waves from the three phases: inspiral, merger and ringdown of a compact binary system, respectively. We will also discuss the gravitational waves as a standard siren to explore the evolution of the Universe.

The Gravity Funnels, formed by the longitudinal vortices, according to the new Axioms and Laws

2021 ◽  
Vol 4 (1) ◽  
Keyword(s):  
Gravitational Waves ◽  
Scientific Theory ◽  
Transverse Direction ◽  
Modern Science ◽  
Longitudinal Direction ◽  
Space Time ◽  
The Other ◽  
Longitudinal Vortices ◽  
New Space ◽  
The One

In the age of information, it is no secret that the modern science is in a very difficult position. On the one hand, it has high hopes for solving the problems of modern humanity and very practical tasks. On the other hand, science shows limited potential and difficulty in carrying out the tasks. Beyond scientific theory remain such phenomena as gravity and gravitational waves and other unexplored and very useful phenomena. Obviously, the reason for these limited capabilities of modern science is its limited foundation. The foundation of science is determined by its basic axioms. If we expand the foundation of science, we will be able to build a more comprehensive, perfect and voluminous theory. In two monographs and a series of articles the author offers a system of extended axioms (with two new axioms) and a more extended theory (with eight new laws). To the great surprise of even the author, this new theory turned out to be extensive enough to cover and explain and the gravity. Moreover, the extended axioms and theory directly and naturally outlined the algorithm in the explanation of the so-called Gravity Funnels. According to the new axioms and laws, Gravity Funnels are both for suction (accelerating) and for expansion (decelerating). Expansion Gravity Funnel decelerates along its longitudinal direction as emits the matter in the transverse direction. In this way it consumes energy and generates matter. Suction Gravity Funnel accelerates along its longitudinal direction as sucks the matter in transverse direction. In this way it consumes matter and generates energy. The both of Funnels are situated in a new Space-time. The Space-time of decelerating and accelerating Funnels is packed by longitudinal vortices, in which the Space (S) is constant. It is radically different of the Space-Time where we live now. The Space-time where we live now is packed by cross vortices, where the time (T) is constant. According the new Axioms and Laws the two described Space- times are mutually orthogonal.

Gamma-Ray Bursts as Probes of the Universe

2011 ◽  
Author(s):  
Joshua S. Bloom
Keyword(s):  
Star Formation ◽  
Cosmic Rays ◽  
Gravitational Waves ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Ongoing Study ◽  
Observable Universe ◽  
History Of ◽  
Expansion Of The Universe ◽  
The Universe

This chapter focuses on how gamma-ray bursts (GRBs) are emerging as unique tools in the study of broad areas of astronomy and physics by virtue of their special properties. The unassailable fact about GRBs that makes them such great probes is that they are fantastically bright and so can be seen to the farthest reaches of the observable Universe. In parallel with the ongoing study of GRB events and progenitors, new lines of inquiry have burgeoned: using GRBs as unique probes of the Universe in ways that are almost completely divorced from the nature of GRBs themselves. Topics discussed include studies of gas, dust, and galaxies; the history of star formation; measuring reionization and the first objects in the universe; neutrinos, gravitational waves, and cosmic rays; quantum gravity and the expansion of the universe; and the future of GRBs.

Stories of a Certain Gravity

2021 ◽  
pp. 11-35
Author(s):  
Gianfranco Bertone
Keyword(s):  
General Relativity ◽  
Short Stories ◽  
Amniotic Fluid ◽  
Gravitational Waves ◽  
Human Condition ◽  
Universal Gravitation ◽  
History Of ◽  
Gravitational Pull ◽  
The Moment ◽  
Fundamental Forces

Before delving into gravitational waves, I illustrate, with nine short stories, the fascinating history of gravity, shedding light on the actual lives and contributions of leading scientists and astronomers, from Tycho Brahe’s adventurous life and grotesque death, to Johannes Kepler’s intuitions and passionate prose. And from Newton’s resolution to cut the Gordian knot of the origin of gravity with his theory of universal gravitation, to Einstein’s heroic struggle to derive the equations of general relativity. Gravity is the weakest of the fundamental forces in nature, yet it subjugates us from the moment we are born. After nine months floating in the womb, suspended in the enveloping heat of the amniotic fluid, we are suddenly confronted with the gravitational pull of our planet. Gravity thus manifests itself as weight, and forces our helpless bodies to the ground, establishing a universal and defining aspect of the human condition.

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