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History and Philosophy of Physics papers — page 69

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Duality, Fundamentality, and Emergence
Dualities offer new possibilities for relating fundamentality and emergence. In particular, as is the aim of this chapter to show, it may happen that the relations of fundamentality and emergence…
Elena Castellani, Sebastian De HaroMar 26, 2018
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Stephen Hawking: To Understand the Universe
A brief remembrance of some aspects of the author's scientific interaction with Stephen Hawking. A contribution to Physics Today's March 14, 2018 web page in which Stephen Hawking is…
James B. HartleMar 25, 2018
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Albert Einstein and the Marangoni family
The sixteen years old Albert Einstein made friend with Ernestina Marangoni in the summer of 1895 in Pavia. We discuss in this article the unacknowledged link between Albert Einstein and the physicist…
Christian BraccoMar 25, 2018
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Archaeoastronomical study of Andean temples in Arica and Parinacota, Chile
After a historical and cultural overview of the "Indian republic", the Andean religiosity and the churches of the highlands of Arica, we detail our archaeoastronomical studies on the…
Alejandro Gangui, Angel Guillen, Magdalena PereiraMar 22, 2018
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On the Unification Problem in Physics
Revised translation of Kaluza's historic 1921 paper, "Zum Unit\"atsproblem der Physik," on 5-dimensional spacetime, used to unify gravity and electromagnetism. This version is based, in part, on a…
Th. KaluzaMar 21, 2018
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Infinities as natural places
It is shown that a notion of natural place is possible within modern physics. For Aristotle, the elements-the primary components of the world-follow to their natural places in the absence of…
Juliano C. S. NevesMar 21, 2018
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The astronomical garden of Venus and Mars-NG915: the pivotal role of Astronomy in dating and deciphering Botticelli's masterpiece
This essay demonstrates the key role of Astronomy in Botticelli's "Venus and Mars-NG915" painting, to date only very partially understood. Worthwhile coincidences among the principles of…
Mariateresa CrostaMar 21, 2018
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Schopenhauer on Space, Time, Causality and Matter: A Physical Re-examination
According to Schopenhauer, Kant's arguments about the transcendental ideality of space and time can be extended to matter through the concept of causality and the principle of sufficient reason.…
Shahen HacyanMar 20, 2018
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Interpreting Theories without a Spacetime
In this paper we have two aims: first, to draw attention to the close connexion between interpretation and scientific understanding; second, to give a detailed account of how theories without a…
Sebastian De Haro, Henk De RegtMar 19, 2018
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Kepler's laws without calculus
Kepler's laws are derived from the inverse square law without the use of calculus and are simplified over previous such derivations.
William G UnruhMar 19, 2018
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Ludvig Lorenz (1867) on Light and Electricity
Independent of Maxwell, in 1867 the Danish physicist L. V. Lorenz proposed a theory in which he identified light with electrical oscillations propagating in a very poor conductor. Lorenz's…
Helge KraghMar 16, 2018
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Spacetime is as spacetime does
Theories of quantum gravity generically presuppose or predict that the reality underlying relativistic spacetimes they are describing is significantly non-spatiotemporal. On pain of empirical…
Vincent Lam, Christian WuthrichMar 12, 2018
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Hilbert's Sixth Problem: the endless road to rigour
Introduction to the special issue of Phil. Trans. R. Soc. A 376, 2018, `Hilbert's Sixth Problem'. The essence of the Sixth Problem is discussed and the content of this issue is introduced. In…
Alexander N. GorbanMar 9, 2018
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The Bronstein hypercube of quantum gravity
We argue for enlarging the traditional view of quantum gravity, based on "quantizing GR", to include explicitly the non-spatiotemporal nature of the fundamental building blocks suggested by…
Daniele OritiMar 7, 2018
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The Climate of the Khagan. Observations on palaeo-environmental Factors of the History of the Avars (6th-9th century AD)
Based on palaeoenvironmental, historical and archaeological data, the paper proposes possible climatic impacts on the history of the Avar Khaganate, which comprised the Carpathian Basin between the…
Johannes Preiser-KapellerMar 5, 2018
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Fermi theory of beta decay: A first attempt at electroweak unification
The purpose of this study, mainly historical and pedagogical, is to investigate the physical-mathematical similitudes of the spectroscopic and beta decay Fermi theories. Both theories were formulated…
Luca NanniFeb 24, 2018
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Tales from the prehistory of Quantum Gravity. Léon Rosenfeld's earliest contribution
The main purpose of this paper is to analyse the earliest work of Léon Rosenfeld, one of the pioneers in the search of Quantum Gravity, the supposed theory unifying quantum theory and general…
Giulio Peruzzi, Alessio RocciFeb 24, 2018
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Lambda, the Fifth Foundational Constant Considered by Einstein
The cosmological constant, usually named Lambda, was introduced by Einstein in 1917 and abandoned by him as his biggest "blunder". It currently seems to make a spectacular comeback in the framework…
Gilles Cohen-TannoudjiFeb 23, 2018
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Symmetry and Contextuality
The general concept of symmetry is realized in manifold ways in different realms of reality, such as plants, animals, minerals, mathematical objects or human artefacts in literature, fine arts and…
Hartmann RömerFeb 19, 2018
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The Initial Approximations for Achromatic Doublets of the XVIII Century
Analysis of the both type (flint-forward and crown-forward) achromatic doublets was carried out. The investigation revealed possible initial approximations which could be used by opticians at…
Igor NesterenkoFeb 19, 2018
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Time Reversal Invariance in Quantum Mechanics
Symmetries have a crucial role in today's physics. In this thesis, we are mostly concerned with time reversal invariance (T-symmetry). A physical system is time reversal invariant if its…
Reza Moulavi ArdakaniFeb 16, 2018
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Demolishing prejudices to get to the foundations: a criterion of demarcation for fundamentality
In this paper, we reject commonly accepted views on fundamentality in science, either based on bottom-up construction or top-down reduction to isolate the alleged fundamental entities. We do not…
Flavio Del Santo, Chiara CardelliFeb 13, 2018
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Scientific Methodology: A View from Early String Theory
This paper addresses the question as to whether the methodology followed in building and assessing string theory can be considered scientific in the same sense, say, that the methodology followed in…
Elena CastellaniFeb 12, 2018
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Binding quantum matter and space-time, without romanticism
Understanding the emergence of a tangible 4-dimensional space-time from a quantum theory of gravity promises to be a tremendously difficult task. This article makes the case that this task may not…
Antoine TilloyFeb 9, 2018
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Frontiers in Nuclear, Heavy Ion and Strong Field Physics
An introduction describing Walter Greiner's scientific life for the topical volume to be published by EPJA
Tamas Biró, Carsten Greiner, Berndt Müller et al.Feb 9, 2018
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