The Great January Comet of 1910 (C/1910 A1): A Key Opportunity Missed by New Zealand AstronomersC/1910 A1 was one of the Great Comets of the twentieth century. Although it was widely observed from the Northern Hemisphere, it was first discovered by observers south of the Equator. The comet…John Drummond, Wayne Orchiston, Carolyn Brown et al.·Nov 16, 2025SaveLearn
Bessel-Hagen on the extension of Noether's theorems and their application to classical electromagnetismThis work analyses the 1921 article by Erich Bessel-Hagen entitled \"Uber die Erhaltungss\"atze der Elektrodynamik ("On the conservation laws of electrodynamics"). The article is based on Noether's…Valeriya Chasova·Nov 15, 2025SaveLearn
Provability vs. Execution: A Comment on "Consequences of Undecidability in Physics on the Theory of Everything"Recent work by Faizal et al. (2025) claims that G\"odelian undecidability of non-algorithmic truths in our universe imply the impossibility of a formal, algorithmic simulation of the universe. This…Evan Redden·Nov 14, 2025SaveLearn
From Heisenberg and Schr\"odinger to the P vs. NP ProblemThis essay offers an epistemological reinterpretation of the foundational divide between matrix mechanics and wave mechanics. Though formally equivalent, the two theories embody distinct modes of…Galina Weinstein·Nov 10, 2025SaveLearn
Alexander Dalgarno and the development of astrochemistryThe interdisciplinary field of astrochemistry arose during the 1970s as observations in previously unexplored parts of the electromagnetic spectrum began to reveal the extent of a molecular component…John H. Black·Nov 9, 2025SaveLearn
A Four-Level Ontological Framework for Quantum Field Theory: From Quantum Vacuum to Phenomenal RealityOne of the foundational challenges in both Quantum Field Theory and the philosophy of physics lies in the traditional binary classification of entities as either real or unreal. The classical view…Ali Reza Mirzaee·Nov 8, 2025SaveLearn
A computational framework for evaluating an edge-integrated, multi-ramp construction model of the Great Pyramid of GizaDespite decades of study, a quantitative, integrated framework to evaluate minutescale throughput, geometric control, and a zero external footprint for Khufu's pyramid has been lacking. We test the…Vicente Luis Rosell Roig·Nov 8, 2025SaveLearn
Nearly forgotten results in development of physical cosmologyIt would be reasonable to recall some critical issues in physical cosmology development. GR was created by A. Einstein in 1915. In 1917 Einstein proposed the first (static) cosmological model. Soon…Alexander F. Zakharov·Nov 8, 2025SaveLearn
Cosmology and PhilosophyScientific cosmology has now reached its period of maturity with the establishment of a standard model, which is the theory of an expanding universe. The question of whether this expansion resolves…Daniel Parrochia·Oct 28, 2025SaveLearn
Algorithmic Randomness, Exchangeability, and the Principal PrincipleWe introduce a framework uniting algorithmic randomness with exchangeable credences to address foundational questions in philosophy of probability and philosophy of science. To demonstrate its power,…Jeffrey A. Barrett, Eddy Keming Chen·Oct 28, 2025SaveLearn
Two Shades of Quark Color: Parallel Canons across the Cold War DivideThe introduction of the color quantum number is conventionally narrated as a linear progression from the quark-model statistics paradox to quantum chromodynamics (QCD). This paper challenges that…Vitaly Pronskikh·Oct 27, 2025SaveLearn
Krisenmanagement in Kerntechnischen Notf\"allen -- Eine Evaluaierung Am Beispiel der Nuklearkatastrophe von FukushimaThe objective of this pre-scientific paper is to analyze the crisis management during the Fukushima nuclear accident in the year of 2011 and to derive lessons for a safer operation of reactors along…Elias Koschier·Oct 26, 2025SaveLearn
From Drag to Invariance: The Experimental Pressure Behind Special RelativityThis paper completes a three-part study of Einstein's 1905 special relativity by reconstructing the experimental pressures that shaped his thinking from 1895 to June 1905. Following Stachel's…Galina Weinstein·Oct 23, 2025SaveLearn
Philip Warren AndersonPhilip Warren Anderson was a pioneering theoretical physicist whose work fundamentally shaped our understanding of complex systems. Anderson received the Nobel Prize in Physics in 1977 for his…Premala Chandra, Piers Coleman, Clare C. Yu·Oct 23, 2025SaveLearn
The simplest complexity: The story of the three-body problemThis article offers a broad-brush account of the Newtonian three-body problem, from its origins with Newton to its vibrant present, emphasizing its enduring influence on theoretical physics. It…Barak Kol·Oct 21, 2025SaveLearn
Is Gravity Truly Balanced? A Historical-Critical Journey Through the Equivalence Principle and the Genesis of Spacetime GeometryWe present a novel derivation of the spacetime metric generated by matter, without invoking Einstein's field equations. For static sources, the metric arises from a relativistic formulation of…Jaume de Haro, Emilio Elizalde·Oct 15, 2025SaveLearn
Math\'ematiques et M\'ecanique \`a Strasbourg entre 1871 et 1939The University of Strasbourg, fundamentally humanistic since its creation, has a complicated history, being sometimes German, sometimes French through the ages. If one focus, from 1871, on the area…D Huilier·Oct 15, 2025SaveLearn
Contemporary Perspectivism as a Framework of Scientific Inquiry in Quantum Mechanics and BeyondContemporary perspectivism is viewed as a framework of scientific inquiry concerning the origin, generation and systematization of scientific knowledge of nature by focusing on the conditions under…Vassilios Karakostas, Elias Zafiris·Oct 13, 2025SaveLearn
Two Types of Natural Kind Discovery: Nobel Meets KuhnPhilosophers have spilled much ink over the discovery of ideas in the classical 'context of discovery'. However, there has been little engagement with the question of what constitutes a…Samuel Schindler·Oct 10, 2025SaveLearn
On Bayesian inference considerations and other issues concerning Drake's equation of AstrosociobiologySpeculation about the existence of advanced forms of life in the Universe and in our galaxy, has been since ever a subject of fascination and discussion in fiction, as well as in astrophysics,…Orfeu Bertolami·Oct 8, 2025SaveLearn
Inspiring stories from women in astronomy in AfricaIn preparation for the International Astronomical Union (IAU) General Assembly (GA) 2024, the first GA held in Africa, the African Network of Women in Astronomy (AfNWA) embarked on a visionary…Priscilla Muheki, Mirjana Pović, Somaya Saad et al.·Oct 6, 2025SaveLearn
Two Wrongs Make One RightAn influential argument for scientific realism posits that, if scientific theories were not true, their empirical success would be a coincidence. Here, I show that the false Drude's theory succeeds…Michele Pizzochero·Oct 6, 2025SaveLearn
Comment on "Comment on Galina Weinstein's article entitled 'Convergences and Divergences: Einstein Poincar\'e and Special Relativity' "This paper provides a systematic response to the criticisms raised by Jean-Marc Ginoux in response to my review of his book on the history of relativity. Whereas my review was written in a strictly…Galina Weinstein·Oct 4, 2025SaveLearn
A century of the Bose-Einstein condensation concept and half a century of the JINR experiments for observation of condensate in the superfluid 4He (He II)This short review is devoted to celebration of two major events in quantum physics. The first one is the birth of the concept of Bose-Einstein condensation (1925) and the second is the experimental…Valentin Zagrebnov·Oct 3, 2025SaveLearn
An account of the arrow of time when scale is surplusExisting accounts of the cosmological arrow of time face a dilemma: generalist approaches that posit time-asymmetric laws lack independent motivation, while particularist approaches that invoke a…Sean Gryb, Simon Friederich·Oct 3, 2025SaveLearn