The Starry Universe of Johannes KeplerJohannes Kepler described the Copernican universe as consisting of a central, small, brilliant sun with its planetary system, all surrounded by giant stars. These stars were far larger than, and much…Christopher M. Graney·Jun 10, 2019SaveLearn
G. Pa\'al and the cosmological revolutionGy\"orgy Pa\'al, the Hungarian cosmologist died in 1992. This article was published twenty-five years later in the Hungarian Astronomical Association (HAA, MCSE in Hungarian) 2017 yearbook for his…L. G. Balázs·Jun 10, 2019SaveLearn
Erwin L. Hahn: A Biographical MemoirErwin Louis Hahn was one of the most innovative and influential physical scientists in recent history, impacting generations of scientists through his work in nuclear magnetic resonance (NMR),…Alexander Pines, Dmitry Budker·Jun 8, 2019SaveLearn
Kantian and Neo-Kantian First Principles for Physical and Metaphysical CognitionI argue that Immanuel Kant's critical philosophy -- in particular the doctrine of transcendental idealism which grounds it -- is best understood as an `epistemic' or `metaphilosophical' doctrine. As…Michael E. Cuffaro·Jun 7, 2019SaveLearn
G\"odel's incompleteness theorem and universal physics theoriesAn ultimate universal theory -- a complete theory that accounts, via few and simple first principles, for all the phenomena already observed and that will ever be observed -- has been, and still is,…Uri Ben-Ya'acov·Jun 6, 2019SaveLearn
Killing Science Fiction: Why Conscious States Cannot Be Copied or RepeatedSeveral philosophical problems arising from the physics of consciousness, including identity, duplication, teleportation, simulation, self-location, and the Boltzmann Brain problem, hinge on one of…Andrew Knight·Jun 1, 2019SaveLearn
From the measurement problem to the primitive ontology programmeThe paper retraces the development from the measurement problem to the primitive ontology programme. It assesses the contribution of the GRW theory to this programme and discusses the pros and cons…Michael Esfeld·May 28, 2019SaveLearn
Bose's derivation, the crucial link to quantum mechanicsIn this brief note I address the question not frequently asked, namely, why did it take two decades between Einstein's first proposal of photons and derivation of the full Planck formula from first…Urjit A. Yajnik·May 28, 2019SaveLearn
The comprehensive theory of lightModern attempts to understand light go back to Newton who considered light to be particles, the so called corpuscular theory, and the other school of Huygens, Young and others. Huygens and Young…Urjit A. Yajnik·May 28, 2019SaveLearn
Investigations into the origin of Einstein's SinkEinstein's sink is a well-known object among physics and astronomy students at Leiden University. Stories about its origin have been passed down since it was moved to the large lecture room of the…A. G. M. Pietrow·May 22, 2019SaveLearn
On a recently proposed dating of the foundation of Julia Augusta Taurinorum (Torino)Recently, a preprint [arXiv:1901.08545] and a series of news announced that Torino, as the roman Augusta Taurinorum, was founded on 30 January 9 BC. The assumption is based on the coincidence of the…Amelia Carolina Sparavigna·May 22, 2019SaveLearn
First bronze statue of Prof. Hideki Yukawa in KochiThe first bronze statue of Prof. Hideki Yukawa, the first Nobel Prize laureate in Japan, is found to have been built in March 1954 in the Yasu elementary school in the countryside of Kochi pref cture…Shigeo Ohkubo·May 19, 2019SaveLearn
On the Philosophical Foundations of Physics: An Experimentalist's PerspectiveSince I first became enthralled with physics as a teenager, I've been intrigued by the philosophical aspects of the discipline. As I approached the end of my career as an experimental physicist and…Stephen Boughn·May 17, 2019SaveLearn
Exploring Gravitational LensingIn this article, we discuss the idea of gravitational lensing, from a systematic, historical and didactic point of view. We show how the basic lensing equation together with the concepts of…Tilman Sauer, Tobias Schütz·May 17, 2019SaveLearn
Tokyo Wheeler or the Epistemic Preconditions of the Renaissance of RelativityDuring the period identified as the Rebirth of General Relativity, John Wheeler was instrumental in retrieving the physics of gravity that had become hidden behind the mathematical formalism. For…Alexander Blum, Dieter Brill·May 15, 2019SaveLearn
On Symmetry and DualityWe advocate an account of dualities between physical theories: the basic idea is that dual theories are isomorphic representations of a common core. We defend and illustrate this account, which we…Sebastian De Haro, Jeremy Butterfield·May 15, 2019SaveLearn
Some considerations on Determinism and Free WillThis article has been written, in a slightly different version, as an introductory chapter for the book collecting the essays of theoretical physicist Gerard 't Hooft, philosopher Emanuele Severino,…Fabio Scardigli·May 12, 2019SaveLearn
Archaeoastronomy in northern Chile: Andean churches of the Arica and Parinacota regionWe present the results obtained from the analysis of the precise spatial orientations of almost forty old colonial Christian churches located in the Arica and Parinacota region. This is an extended…Alejandro Gangui, Angel Guillen, Magdalena Pereira·May 8, 2019SaveLearn
The influence of gravity on the Boltzmann entropy of a closed universeThis contribution inquires into Clausius' proposal that "the entropy of the world tends to a maximum.'" The question is raised whether the entropy of "the world" actually does have a maximum; and if…Michael K. -H. Kiessling·Apr 26, 2019SaveLearn
No-Go Theorems and the Foundations of Quantum PhysicsIn the history of quantum physics several no-go theorems have been proved, and many of them have played a central role in the development of the theory, such as Bell's or the Kochen-Specker theorem.…Andrea Oldofredi·Apr 24, 2019SaveLearn
Einstein sticks out his tonguearXiv admin note: This submission has been withdrawn by arXiv administrators due to inflammatory content and unprofessional languageTomasz Bodziony·Apr 22, 2019SaveLearn
Naturalness as a reasonable scientific principle in fundamental physicsI aim to clarify the physical content and significance of naturalness. Physicists' earliest understanding of naturalness, as an autonomy of scales (AoS) requirement provides the most cogent…Casper Daniel Dijkstra·Apr 19, 2019SaveLearn
Symbols and astrological terms in ancient arabic inscriptionsIn the past, the Arabs in Al-Hara Zone used many stars to deduce the seasons of the year and also to deduce the roads, at that time this was the most convenient way to figure their ways and to know…Mohammed H. Talafha, Ziad A. Talafha·Apr 19, 2019SaveLearn
Sacred Landscape of the Incas in Central Chile: Radial Ceque System Encoded in the Archeological Site Ruinas de ChadaMounts and hills played a predominant role in all pre-Hispanic Andean cultures, especially for the Inca culture. Through the use of georeferenced orthophotography, we found that the Inca site, Ruinas…Nicolas Palacios-Prado, Fabiola Corominas·Apr 16, 2019SaveLearn
Einstein's biggest mistake?What, if any, was Einstein's biggest mistake, the one most affecting our physics today? There is a perhaps apocryphal story, recounted by George Gamow, that he counted his cosmological constant as…Gary J. Ferland·Apr 15, 2019SaveLearn