Results for 'orbital debris'

45 found
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  1. An Ontological Architecture for Orbital Debris Data.Robert J. Rovetto - 2015 - Earth Science Informatics 9 (1):67-82.
    The orbital debris problem presents an opportunity for inter-agency and international cooperation toward the mutually beneficial goals of debris prevention, mitigation, remediation, and improved space situational awareness (SSA). Achieving these goals requires sharing orbital debris and other SSA data. Toward this, I present an ontological architecture for the orbital debris and broader SSA domain, taking steps in the creation of an orbital debris ontology (ODO). The purpose of this ontological system is (...)
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  2. The Orbital Space Environment and Space Situational Awareness Domain Ontology – Towards an International Information System for Space Data.Robert J. Rovetto - 2016 Sept - In Proceedings of The Advanced Maui Optical and Space Surveillance Technologies (AMOS) Conference.
    The orbital space environment is home to natural and artificial satellites, debris, and space weather phenomena. As the population of orbital objects grows so do the potential hazards to astronauts, space infrastructure and spaceflight capability. Orbital debris, in particular, is a universal concern. This and other hazards can be minimized by improving global space situational awareness (SSA). By sharing more data and increasing observational coverage of the space environment we stand to achieve that goal, thereby (...)
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  3. Preliminaries of a Space Situational Awareness Ontology.Robert J. Rovetto & T. S. Kelso - 2016 Feb - In Renato Zanetti, Ryan P. Russell, Martin T. Oximek & Angela L. Bowes (eds.), Proceedings of AAS/AIAA Spaceflight Mechanics Meeting, in Advances in the Astronautical Sciences. Univelt Inc.. pp. 4177-4192.
    Space situational awareness (SSA) is vital for international safety and security, and for the future of space travel. The sharing of SSA data and information should improve the state of global SSA for planetary defense and spaceflight safety. I take steps toward a Space Situational Awareness (SSA) Ontology, and outline some central objectives, requirements and desiderata in the ontology development process for this domain. The purpose of this ontological system is to explore the potential for the ontology research topic to (...)
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  4. The Space Object Ontology.Robert J. Rovetto - 2016 - 2016 1.
    This paper develops the ontology of space objects for theoretical and computational ontology applied to the space (astronautical/astronomical) domain. It follows “An ontological architecture for Orbital Debris Data” (Rovetto, 2015) and “Preliminaries of a Space Situational Awareness Ontology” (Rovetto, Kelso, 2016). Important considerations for developing a space object ontology, or more broadly, a space domain ontology are presented. The main category term ‘Space Object’ is analyzed from a philosophical perspective. The ontological commitments of legal definitions for artificial space (...)
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  5. Marine Debris Ingestion by Sea Turtles (Testudines) on the Brazilian Coast: An Underestimated Threat?Robson Henrique Carvalho, Pedro Dutra Lacerda, Sarah da Silva Mendes, Bruno Corrêa Barbosa, Mariana Paschoalini, Fábio Prezoto & Bernadete Maria de Sousa - 2015 - Marine Pollution Bulletin 101 (3):746-749.
    Assessment of marine debris ingestion by sea turtles is important, especially to ensure their survival. From January to December 2011, 23 specimens of five species of sea turtleswere found dead or dying after being rehabilitated, along the coast of the municipality of Rio de Janeiro, Brazil. To detect the presence of marine debris in the digestive tract of these turtles, we conducted a postmortemexamination from the esophagus until the distal portion of the large intestine for each specimen. Of (...)
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  6. Orbital Space Environment and Space Situational Awareness Domain Ontology.Robert J. Rovetto - 2016 - In Stefano Borgo, Jean-Rémi Bourguet & Adrien Barton (eds.), CEUR workshop proceedings of The Joint Ontology Workshops, with the 9th International Conference of Formal Ontology for Information Systems (FOIS), Early Career Symposium. CEUR Scientific Workshops.
    A short summary paper of my Orbital Space Domain Ontology project (purl.org/space-ontology), originally conceived in 2011. Since then I've sought (without success) opportunities to realize it (either as a PhD or other degree thesis; or in an employment position) toward my original passion of entering the space sector and gaining further space education. Since then persons in the relevant space disciplines have seen the potential in it, and unfortunately some have taken advantage of my ideas yet excluded me from (...)
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  7.  23
    History, Discovery and Induction: Whewell on Kepler on the Orbit of Mars.A. Lugg - 1989 - Boston Studies in the Philosophy of Science 116:283-298.
    Discussion of William Whewell on Kepler on the orbit of Mars. A paper in *An Intimate Relation*, a volume presented to Robert E. Butts on his 60th Birthday.
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  8. Retrieving the Mathematical Mission of the Continuum Concept From the Transfinitely Reductionist Debris of Cantor’s Paradise. Extended Abstract.Edward G. Belaga - forthcoming - International Journal of Pure and Applied Mathematics.
    What is so special and mysterious about the Continuum, this ancient, always topical, and alongside the concept of integers, most intuitively transparent and omnipresent conceptual and formal medium for mathematical constructions and the battle field of mathematical inquiries ? And why it resists the century long siege by best mathematical minds of all times committed to penetrate once and for all its set-theoretical enigma ? -/- The double-edged purpose of the present study is to save from the transfinite deadlock of (...)
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  9.  37
    TIME ITERATION FOR REPEATEDLY SAME ORBITAL MOTION OF OBJECTS IN SPACE.Areena Bhatti - 2019 - Conference Paper Abstract.
    This theory aims to describe what time iteration is. That is the property of time that it repeats itself. This paper focuses on the repetition of orbital motions of objects in space and gives us three postulates that describe what time will be with different relations of objects and their surroundings. This paper will help to make us understand how everything in our universe which is orbiting something if repeats its orbital motion again and again no matter in (...)
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  10. The Inevitability of Militarization of Outer Space.Paweł Bernat - 2019 - Safety and Defense 1 (5).
    At the end of the second decade of the 21st century, we witness a progressive increase of strategic importance of artificial satellites and other orbital systems, which is a consequence of the ever-accelerating development of space technologies that include weapons systems. The outer space becomes a theatre for a potential conflict. The states possessing sufficient technological potential will further develop and expand those systems, both defensive (for eliminating threats) and offensive (securing the military advantage and serving as a deterrent) (...)
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  11. 3. Planck Unit Quantum Gravity (Gravitons) for Simulation Hypothesis Modeling.Malcolm J. Macleod - manuscript
    Defined are gravitational formulas in terms of Planck units and units of $\hbar c$. Mass is not assigned as a constant property but is instead treated as a discrete event defined by units of Planck mass with gravity as an interaction between these units, the gravitational orbit as the sum of these mass-mass interactions and the gravitational coupling constant as a measure of the frequency of these interactions and not the magnitude of the gravitational force itself. Each particle that is (...)
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  12. Filosofia Analitica e Filosofia Continentale.Sergio Cremaschi, Karl-Otto Apel, Jürgen Habermas, Michael Strauss, Ernst Tugendhat, Zvie Bar-On, Roberta De-Monticelli, Kuno Lorenz, Albrecht Wellmer & Rüdiger Bubner - 1997 - 50018 Scandicci, Metropolitan City of Florence, Italy: La Nuova Italia.
    ● Sergio Cremaschi, The non-existing Island. I discuss the way in which the cleavage between the Continental and the Anglo-American philosophies originated, the (self-)images of both philosophical worlds, the converging rediscoveries from the Seventies, as well as recent ecumenic or anti-ecumenic strategies. I argue that pragmatism provides an important counter-instance to both the familiar self-images and to the fashionable ecumenic or anti-ecumenic strategies. My conclusions are: (i) the only place where Continental philosophy exists (as Euro-Communism one decade ago) is America; (...)
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  13. The Space Object Ontology.Alexander Cox, Christopher Nebelecky, Ronald Rudnicki, William Tagliaferri, John L. Crassidis & Barry Smith - 2016 - In 19th International Conference on Information Fusion (FUSION 2016). IEEE.
    Achieving space domain awareness requires the identification, characterization, and tracking of space objects. Storing and leveraging associated space object data for purposes such as hostile threat assessment, object identification, and collision prediction and avoidance present further challenges. Space objects are characterized according to a variety of parameters including their identifiers, design specifications, components, subsystems, capabilities, vulnerabilities, origins, missions, orbital elements, patterns of life, processes, operational statuses, and associated persons, organizations, or nations. The Space Object Ontology provides a consensus-based realist (...)
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  14. Modern Perspectives on Faith: Abraham’s Case in Kant and Kierkegaard. Reconstructions and Critical Remarks.Daniel Nica - 2017 - Annals of the University of Bucharest - Philosophy Series 66 (1):107-123.
    In this paper, I will compare Kant’s and Kierkegaard’s reflections on faith as they are articulated in the particular analyses of Abraham’s sacrifice. Kant’s prosecution of Abraham, which commences from the idea of “natural religion”, rests on two interrelated lines of attack, an epistemological one and ethical one, which deem Abraham’s action to be morally reprehensible. For Kant, the primacy of the practical reason leaves no special room for divine duties that are not ethical at the same time. On the (...)
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  15.  9
    الإصلاحية الإسلامية والنص القرآني.Mohamed Zekkari - 2021 - المستقبل العربي 513:85-99.
    أَخَذَ النصُّ القرآنيُّ حيّزاً وافراً من الاهتمامِ والتّأليف، على امتدادِ القَرنِ التّاسع عَشَر وبداية القرنِ العشرين. تَقَعُ مُحَاوَلةُ الإصلاحيّةِ الإسْلاميّةِ في إعَادَةِ تَفْسِيرِ القُرْآنِ وفق شُرُوطٍ عَصْريَّةٍ، في مدارِ ما يمكنُ الاصطلاحُ عليه بـــ "التّفسير العقلاني"، وتعني العَقْلَنَةُ، في هذا المقام، إخْراجَ تَفْسِيرِ القرآنِ، وأشكالِ فهمه وتلقّيهِ، من دوائر الأسْطَرةِ التي غلّفتهُ لردحٍ طويل من الزّمنِ، حَيْثُ بلغتْ العَقْلَنَةُ ذروةَ نشاطها معَ بعضٍ من أَعْلَام الفكر الإصلاحيِّ، خاصَّةً معَ محمّد عبده. لكنّ، هذه المحاولة الإصلاحيّة، سرعان ما انكفتْ على أعقابها، وَوَلَجَتْ (...)
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  16.  70
    The C-Aplpha Non Exclusion Principle and the Vastly Different Internal Electron and Muon Center of Charge Vacuum Fluctuation Geometry.Jim Wilson - forthcoming - Physics Essays.
    The electronic and muonic hydrogen energy levels are calculated very accurately [1] in Quantum Electrodynamics (QED) by coupling the Dirac Equation four vector (c ,mc2) current covariantly with the external electromagnetic (EM) field four vector in QED’s Interactive Representation (IR). The c -Non Exclusion Principle(c -NEP) states that, if one accepts c as the electron/muon velocity operator because of the very accurate hydrogen energy levels calculated, the one must also accept the resulting electron/muon internal spatial and time coordinate operators (ISaTCO) (...)
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  17.  26
    Other Stars, Other Planets, and Other Life: A Primer That Goes Two-Thirds of the Way. [REVIEW]Marc Champagne - 2021 - Metascience 30 (1):153-156.
    Thanks to advances in astronomical measurement and computer modeling, “now we know thousands of worlds” (Deacon 2020, 7). By contrast, “in 1990 all we could say was that one star, the Sun, out of hundreds of billions, definitely hosted planets” (ibid., 18). The word “definitely” does a lot of work here. Knowledge does not require, and indeed rarely attains, certainty, so we might rephrase the foregoing as “in 1990 all we could say with sufficient assurance was that one star, the (...)
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  18. O Male Factum: Rectilinearity and Kepler's Discovery of the Ellipse.David Marshall Miller - 2008 - Journal for the History of Astronomy 39.
    In 1596, in the Mysterium Cosmographicum, a twenty-five-year-old Johannes Kepler rashly banished lines from the universe. They “scarcely admit of order,” he wrote, and God himself could have no use for them in this “well-ordered universe.” Twenty-five years later, though, Kepler had come to repent the temerity of his youth. “O male factum!” he lamented in a 1621 second edition of the Mysterium – “O what a mistake” it was to dismiss lines, for linearity is revealed in those most perfect (...)
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  19. Geometric Model of Gravity, Counterfactual Solar Mass, and the Pioneer Anomalies.Andrew Holster - manuscript
    This study analyses the predictions of the General Theory of Relativity (GTR) against a slightly modified version of the standard central mass solution (Schwarzschild solution). It is applied to central gravity in the solar system, the Pioneer spacecraft anomalies (which GTR fails to predict correctly), and planetary orbit distances and times, etc (where GTR is thought consistent.) -/- The modified gravity equation was motivated by a theory originally called ‘TFP’ (Time Flow Physics, 2004). This is now replaced by the ‘Geometric (...)
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  20. Qu'est-ce que le realisme scientifique?Howard Sankey - 2002 - Reseaux 94:69-82.
    Les tables, les chaises, les gens assis sur des chaises, à des tables sont des objets composés de matière. Selon la science, la matière se compose principalement d'atomes. Les atomes sont faits d'électrons, de neutrons et de protons. Les neutrons et les protons forment un noyau autour duquel orbitent les électrons. Outre ces particules, les physiciens en ont découvert un grand nombre d'autres, comme les photons, les quarks et les neutrinos.
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  21. Contemporary Legal Philosophising: Schmitt, Kelsen, Lukács, Hart, & Law and Literature, with Marxism's Dark Legacy in Central Europe (on Teaching Legal Philosophy in Appendix).Csaba Varga - 2013 - Szent István Társulat.
    Reedition of papers in English spanning from 1986 to 2009 /// Historical background -- An imposed legacy -- Twentieth century contemporaneity -- Appendix: The philosophy of teaching legal philosophy in Hungary /// HISTORICAL BACKGROUND -- PHILOSOPHY OF LAW IN CENTRAL & EASTERN EUROPE: A SKETCH OF HISTORY [1999] 11–21 // PHILOSOPHISING ON LAW IN THE TURMOIL OF COMMUNIST TAKEOVER IN HUNGARY (TWO PORTRAITS, INTERWAR AND POSTWAR: JULIUS MOÓR & ISTVÁN LOSONCZY) [2001–2002] 23–39: Julius Moór 23 / István Losonczy 29 // (...)
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  22. "Meat and Evil".Matthew C. Halteman - 2019 - In Andrew Chignell (ed.), Evil: A History (Oxford Philosophical Concepts). Oxford: Oxford University Press. pp. 88-96.
    In a world where meat is often a token of comfort, health, hospitality, and abundance, one can be forgiven for raising an eyebrow at the conjunction “meat and evil.” Why pull meat into the orbit of harm, pestilence, ill-will, and privation? From another perspective, the answer is obvious: meat—the flesh of slaughtered animals taken for food—is the remnant of a feeling creature who was recently alive and whose death was premature, violent, and often gratuitous. The truth is that meat has (...)
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  23. Le réalisme: contributions au séminaire d’histoire des sciences 1993-1994.Jean-François Stoffel - 1996 - 2300 Turnhout, Belgique: Brepols Publishers.
    Anne TIHON, Théorie et réalité : l’exemple de l’astronomie an­cienne (pp. 7-23) ; Isabelle DRAELANTS, Les encyclopédies com­me sommes des connaissances, d’Isidore de Séville au XIIIe siè­cle, avec les fondements antiques (pp. 25-50) ; Andrée COLINET, Alchimie antique et médiévale avant 1300 : mystères et réalités (pp. 51-70) ; Baudouin VAN DEN ABEELE, Quelques pas de grue à travers l’histoire naturelle médiévale : un regard diversifié sur le réel (pp. 71-98) ; Régine LEURQUIN, L’astrolabe plan (pp. 99- 117) ; Patricia (...)
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  24. A New Method for Analysis of Biomolecules Using the BSM-SG Atomic Models.Stoyan Sarg Sargoytchev - 2017 - J. Biom Biostat 8 (2):1000339.
    Biomolecules and particularly proteins and DNA exhibit some mysterious features that cannot find satisfactory explanation by quantum mechanical modes of atoms. One of them, known as a Levinthal’s paradox, is the ability to preserve their complex three-dimensional structure in appropriate environments. Another one is that they possess some unknown energy mechanism. The Basic Structures of Matter Supergravitation Unified Theory (BSM-SG) allows uncovering the real physical structures of the elementary particles and their spatial arrangement in atomic nuclei. The resulting physical models (...)
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  25.  53
    Creation - A Perspective From Gurbani.Devinder Pal Singh - 2021 - Global Gurmat Vichar 57th Webinar Meeting Proceedings.
    Our Universe is dotted with over 100 billion galaxies, and each one contains roughly 100 billion stars. It is unclear how many planets are orbiting these stars, but it is certain that at least one of them has evolved life. In particular, there is a life form that has had the capacity and audacity to speculate about the origin of this vast universe2. Humans have been staring up into space for thousands of generations, to have a rational and coherent description (...)
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  26. “Shut The Front Door!”: Obviating the Challenge of Large-Scale Extra Dimensions and Psychophysical Bridging.Richard L. Amoroso - 2013 - In Richard L. Amoroso, Louis H. Kauffman & Peter Rowlands (eds.), The Physics of Reality: Space, Time, Matter, Cosmos. World Scientific Publishers. pp. 510-522.
    Physics has been slowly and reluctantly beginning to address the role and fundamental basis of the ‘observer’ which has until now also been considered metaphysical and beyond the mandate empirical rigor. It is suggested that the fundamental premise of the currently dominant view of ‘Cognitive Theory’ - “Mind Equals Brain” is erroneous; and the associated belief that the ‘Planck scale, ‘the so-called basement level of reality’, as an appropriate arena from which to model psycho-physical bridging is also in error. In (...)
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  27. ARE DARK MATTER AND DARK ENERGY OPPOSITE EFFECTS OF THE QUANTUM VACUUM? Guillen - manuscript
    In the standard model of cosmology, λCDM, were introduced to explain the anomalies of the orbital velocities of galaxies in clusters highest according estimated by General Relativity the dark matter and the accelerated expansion of the universe the dark energy. The model λCDM is based in the equations of the General Relativity that of the total mass-energy of the universe assigns 4.9% to matter (including only baryonic matter), 26.8%, to dark matter and 68.3% to dark energy adjusted according observed (...)
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  28.  49
    Observations cosmologiques pour la vérification de la relativité générale.Sfetcu Nicolae - manuscript
    Les scientifiques espèrent qu'à l'avenir ils pourront tester des trous noirs en observant les effets causés par un fort champ gravitationnel à proximité, comme la lentille gravitationnelle. Il existe déjà des observations sur les lentilles gravitationnelles faibles, dans lesquelles les rayons lumineux sont déviés en quelques secondes seulement, mais jamais directement pour un trou noir. Il existe plusieurs candidats à cet effet, en orbite autour du Sagittaire A*. Plusieurs conjectures ad hoc ont été introduites pour mieux expliquer les observations de (...)
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  29. Dai modelli fisici ai sistemi complessi.Giorgio Turchetti - 2012 - In Vincenzo Fano, Enrico Giannetto, Giulia Giannini & Pierluigi Graziani (eds.), Complessità e Riduzionismo. © ISONOMIA – Epistemologica, University of Urbino. pp. 108-125.
    L’osservazione della natura con l’intento di capire l’origine della varietà di forme e fenomeni in cui si manifesta ha origini remote. All’inizio il rapporto con i fenomeni naturali era dominato da sentimenti quali paura e stupore che conducevano a supporre l’esistenza di entità sfuggenti alla percezione diretta che permeavano gli elementi animandoli. Ecco dunque che la magia rappresenta l’elemento dominante della filosofia naturale primitiva caratterizzata da una unicità degli eventi e dalla impossibilità di capirli e dominarli in quanto frutto della (...)
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  30. Bi-Medial Plato, Derrida's Pharmakon.Francesco Tampoia - manuscript
    Only ten years since Derrida’s death, with critical detachment, is it possible to be in touch with him again, to start from the beginning of his philosophizing in company with Plato, and from this vantage point to re-read Dissemination? What really stands between Plato and Derrida? In the first page of Pharmacia Derrida writes: “We will take off here from the Phaedrus ... Only a blind or grossly insensitive reading, could indeed spread the rumour that Plato was simply condemning the (...)
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  31.  73
    Tests classiques et modernes de la relativité générale.Nicolae Sfetcu - manuscript
    Albert Einstein a proposé trois tests de relativité générale, appelés plus tard les tests classiques de relativité générale, en 1916 : la précession de l'orbite de Mercure, la déviation de la lumière du soleil, et le décalage vers le rouge gravitationnel de la lumière. Dicke et Schiff ont établi un cadre pour tester la relativité générale , y compris par le biais d'expériences nulles et en utilisant la physique de l'exploration spatiale, de l'électronique et de la matière condensée, comme l'expérience (...)
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  32. Programming Relativity and Gravity Via a Discrete Pixel Space in Planck Level Simulation Hypothesis Models.Malcolm J. Macleod - manuscript
    Outlined here is a simulation hypothesis approach that uses an expanding (the simulation clock-rate measured in units of Planck time) 4-axis hyper-sphere and mathematical particles that oscillate between an electric wave-state and a mass (unit of Planck mass per unit of Planck time) point-state. Particles are assigned a spin axis which determines the direction in which they are pulled by this (hyper-sphere pilot wave) expansion, thus all particles travel at, and only at, the velocity of expansion (the origin of $c$), (...)
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  33. STRINGS ARE BINARY DIGITS WHOSE CURRENTS IN TWO 2-D MOBIUS LOOPS PRODUCE A 4-D FIGURE-8 KLEIN BOTTLE THAT COMPOSES EACH OF THE SUBUNIVERSES IN THE ONE UNIVERSE.Rodney Bartlett - 2013 - Vixra.Org (Category - Quantum Gravity and String Theory).
    The strings of physics’ string theory are the binary digits of 1 and 0 used in computers and electronics. The digits are constantly switching between their representations of the “on” and “off” states. This switching is usually referred to as a flow or current. Currents in the two 2-dimensional programs called Mobius loops are connected into a four-dimensional figure-8 Klein bottle by the infinitely-long irrational and transcendental numbers. Such an infinite connection translates - via bosons being ultimately composed of 1’s (...)
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  34. 4, 2, 1 Forces - 1 Unity.Rodney Bartlett - 2011 - Particle Spin, F=Ma and Black Holes Revise Gravity, Unify Gravitation with Electromagnetism and Matter, and Eliminate the Two Nuclear Forces.
    The complete title of this article is - -/- "Particle spin, F=ma and black holes revise gravity, unify gravitation with electromagnetism and matter, and eliminate the two nuclear forces (with support for the existence of God, ESP, and time travel; deletion of disasters, disease, death and parallel universes; as well as new explanations of why planetary orbits are ellipses, and why tides follow the moon/why the moon’s slowly moving away from Earth)". -/- I think the phrase "end of the world" (...)
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  35. Einstein's Gravitation is Einstein-Grossmann's Equations.Alfonso Leon Guillen Gomez - 2015 - Journal of Advances in Physics 11 (3):3099-3110.
    While the philosophers of science discuss the General Relativity, the mathematical physicists do not question it. Therefore, there is a conflict. From the theoretical point view “the question of precisely what Einstein discovered remains unanswered, for we have no consensus over the exact nature of the theory 's foundations. Is this the theory that extends the relativity of motion from inertial motion to accelerated motion, as Einstein contended? Or is it just a theory that treats gravitation geometrically in the spacetime (...)
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  36.  92
    On the Angular Momentum of a System of Quantum Particles.Oscar Chavoya Aceves - manuscript
    The properties of angular momentum and its connection to magnetic momentum are explored, based on a reconsideration of the Stern-Gerlach experiment and gauge invariance. A possible way to solve the so called spin crisis is proposed. The separation of angular momentum of a quan- tum system of particles into orbital angular momentum plus intrinsic angular momentum is reconsidered, within the limits of the Schrodinger theory. A proof is given that, for systems of more than two particles, un- less all (...)
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  37. Are Information, Cognition and the Principle of Existence Intrinsically Structured in the Quantum Model of Reality?Elio Conte - forthcoming - Open Systems and Information Dynamics.
    The thesis of this paper is that Information, Cognition and a Principle of Existence are intrinsically structured in the quantum model of reality. We reach such evidence by using the Clifford algebra. We analyze quantization in some traditional cases of quantum mechanics and, in particular in quantum harmonic oscillator, orbital angular momentum and hydrogen atom.
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  38.  22
    Comparing the Motion of Solar System with Water Droplet Motion to Predict the Future of Solar System.Areena Bhatti - 2019 - Conference Paper Abstract.
    The geometric arrangement of planet and moon is the result of a self-organizing system. In our solar system, the planets and moons are constantly orbiting around the sun. The aim of this theory is to compare the motion of a solar system with the motion of water droplet when poured into a water body. The basic methodology is to compare both motions to know how they are related to each other. The difference between both systems will be that one is (...)
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  39. ARE DARK MATTER AND DARK ENERGY OPPOSITE EFFECTS OF THE QUANTUM VACUUM?Alfonso Leon Guillen Gomez - manuscript
    In the standard model of cosmology, λCDM, were introduced to explain the anomalies of the orbital velocities of galaxies in clusters highest according estimated by General Relativity the dark matter and the accelerated expansion of the universe the dark energy. The model λCDM is based in the equations of the General Relativity that of the total mass-energy of the universe assigns 4.9% to matter (including only baryonic matter), 26.8%, to dark matter and 68.3% to dark energy adjusted according observed (...)
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  40.  50
    Classic Gravitational Tests of Post-Einsteinian Theories.Nicolae Sfetcu - manuscript
    Albert Einstein proposed three tests of general relativity, later named the classic tests of general relativity, in 1916: the precession of the perihelion of Mercury's orbit, sun light deflection, and the gravitational redshift of the light. For gravitational testing, the indirect effects of gravity are always used, usually particles that are influenced by gravity. In the presence of gravity, the particles move along curved geodesic lines. The sources of gravity that cause the curvature of spacetime are material bodies, depending on (...)
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  41.  49
    Testing the Relativistic Theories of Gravity.Nicolae Sfetcu - manuscript
    In developing general relativity, Einstein was led by theoretical criteria of elegance and simplicity. His theory initially encountered "three classic tests": perihelion precession of Mercury's orbit, deflection of light by the Sun, and gravitational redshift of light. There are large differences in predictions between general relativity and classical physics, such as gravitational time dilation, gravitational lensing, gravitational redshift of light, and so on. And there are many relativistic theories of gravity, bifurcated or independent, but Einstein's general theory of relativity has (...)
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  42.  48
    Tests and Anomalies of Post-Newtonian Gravitational Theories.Nicolae Sfetcu - manuscript
    Usually, the "laboratory" of gravitational tests was the celestial bodies, the astrophysical systems. But such tests are disturbed by non-gravitational effects. The most used such "laboratory" was the solar system. Recently, scientists have focused on observing binary pulsars for the verification of gravitational theories, by observing the variations of the orbital period, thus providing indirect evidence for the emission of gravitational radiation. But the experimenter cannot "arrange the lab" according to his needs, nor trigger certain events when he needs (...)
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  43.  48
    Le film Solaris, réalisé par Andrei Tarkovski.Nicolae Sfetcu - manuscript
    Le film est un drame psychologique se déroulant à bord d'une station spatiale en orbite autour de la planète Solaris. Les trois membres de l'équipage ont des problèmes psychologiques. Le psychologue Kris Kelvin est envoyé là pour évaluer la situation, mais il fait face aux mêmes phénomènes mystérieux que les autres. Pour Tarkovsky, le conflit existentiel exposé par Lem n'était que le point de départ du développement de la vie intérieure des personnages. DOI: 10.13140/RG.2.2.11405.49129.
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  44. On the Angular Momentum of a System of Quantum Particles.O. Chavoya-Aceves - manuscript
    The properties of angular momentum and its connection to magnetic momentum are explored, based on a reconsideration of the Stern-Gerlach experiment and gauge invariance. A possible way to solve the so called spin crisis is proposed. The separation of angular momentum of a quantum system of particles into orbital angular momentum plus intrinsic angular momentum is reconsidered, within the limits of the Schr\"odinger theory. A proof is given that, for systems of more than two particles, unless all of them (...)
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  45.  74
    OUT OF TIME - Predicting the Science of Future Centuries and Millennia.Rodney Bartlett - 2021 - Beau Bassin-Rose Hill, Mauritius: LAP (LAMBERT Academic Publishing).
    This book is my gift to Albert Einstein on the occasion of his 142nd birthday - and is also a gift to everybody in the world he helped to shape! -/- My book adopts the view that the universe is infinite and eternal - but scientifically created. This paradox of creating eternity depends on the advanced electronics developed by future humanity. Those humans will develop time travel, plus programs that use "imaginary" time and infinite numbers like pi. They'll also become (...)
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