Jan Veth's paintings of Jacobus KapteynJacobus C. Kapteyn is regarded as one of the coryfees of the University of Groningen. Part of his legacy is two paintings of him by Dutch painter Jan Pieter Veth. One, showing him at his desk,…Pieter C. van der Kruit·May 27, 2024SaveLearn
Positivism in Newtonian Mechanics: The Ousia or a Historical Liability?The positivistic assumptions of determinism and objectivism in the realm of Newtonian mechanics are questioned in this paper. While objectivism is only challenged through proposing the mildest form…Seyed Mohammad Rezaei Niya·May 22, 2024SaveLearn
Bohr and von Neumann on the Universality of Quantum Mechanics: Materials for the History of the Quantum Measurement ProcessThe Bohr and von Neumann views on the measurement process in quantum mechanics have been interpreted for a long time in somewhat controversial terms, often leading to misconceptions. On the basis of…Federico Laudisa·May 13, 2024SaveLearn
Revolutionizing Quantum Mechanics: The Birth and Evolution of the Many-Worlds InterpretationThe Many-worlds Interpretation (MWI) of quantum mechanics has captivated physicists and philosophers alike since its inception in the mid-20th century. This paper explores the historical roots,…Arnub Ghosh·May 11, 2024SaveLearn
Ising's roots and the transfer-matrix eigenvaluesToday, the Ising model is an archetype describing collective ordering processes. And, as such, it is widely known in physics and far beyond. Less known is the fact that the thesis defended by Ernst…Reinhard Folk, Yurij Holovatch·May 9, 2024SaveLearn
Some Things I Have Learned From Detlef D\"urrDetlef D\"urr (1951-2021) was a theoretical and mathematical physicist who worked particularly on the foundations of quantum mechanics, electromagnetism, and statistical mechanics. This piece is a…Roderich Tumulka·May 7, 2024SaveLearn
A Puzzle About General Covariance and GaugeWe consider two simple criteria for when a physical theory should be said to be "generally covariant", and we argue that these criteria are not met by Yang-Mills theory, even on geometric…Eleanor March, James Owen Weatherall·May 6, 2024SaveLearn
Polish Astrophysics: The First Half-Century, 1923-1973An attempt is made to evaluate progress of the Polish astrophysical research of stars and of the inter-stellar medium (ISM) on the basis of scientific paper citations in the ADS database. Rather…S. M. Rucinski·May 2, 2024SaveLearn
Mikhail Lomonosov: Discourse on Greater Accuracy of NavigationMikhail Lomonosov (1711-1765) is the eminent Russian polymath and a towering figure of the European Enlightenment. This English translation of his seminal work Discourse on Greater Accuracy of…Mikahil Lomonosov, Vladimir Shiltsev·Apr 29, 2024SaveLearn
Dressing vs. Fixing: On How to Extract and Interpret Gauge-Invariant ContentThere is solid consensus among physicists and philosophers that, in gauge field theory, for a quantity to be physically meaningful or real, it must be gauge-invariant. Yet, every "elementary" field…Philipp Berghofer, Jordan François·Apr 29, 2024SaveLearn
Stagnant Lakatosian Research ProgrammesWe propose an extension of the classical dichotomous categorization of research programmes into progress and degeneration according to Lakatos in the form of a neutral third category: the stagnant…Johannes Branahl·Apr 28, 2024SaveLearn
Mikhail Lomonosov: Oration on the Origin of LightMikhail Lomonosov (1711-1765) was the eminent Russian polymath and a towering figure of the European Enlightenment. This English translation of Mikhail Lomonosov seminal work "Oration on the Origin…Mikhail Lomonosov, Vladimir Shiltsev·Apr 28, 2024SaveLearn
Mikhail Lomonosov: Oration on Benefits of ChemistryMikhail Lomonosov (1711-1765) was a Russian polymath and one of the giants of the European Enlightenment. This English translation of his seminal work Oration on Benefits of Chemistry continues the…Mikhail Lomonosov, Vladimir Shiltsev·Apr 27, 2024SaveLearn
Mikhail Lomonosov: Oration on the Birth of Metals by Earth's TremorThis English translation of seminal work of Russian polymath Mikhail Lomonosov. It is derived from its Russian and Latin originals (1757) and continues the series of English translations of Lomonosov…Mikhail Lomonosov, Vladimir Shiltsev·Apr 26, 2024SaveLearn
On the Meaning of Local Symmetries: Epistemic-Ontological DialecticsWe propose our account of the meaning of local symmetries. We argue that the general covariance principle and gauge principle both are principles of democratic epistemic access to the law of physics,…Jordan François, Lucrezia Ravera·Apr 26, 2024SaveLearn
Gauge Invariance through Gauge FixingPhenomena in gauge theory are often described in the physics literature via a specific choice of gauge. In foundational and philosophical discussions this is often criticized as introducing gauge…David Wallace·Apr 23, 2024SaveLearn
Equivalence Relations in Quantum Theory: An Objective Account of Bases and FactorizationsIn orthodox Standard Quantum Mechanics (SQM) bases and factorizations are considered to define quantum states and entanglement in relativistic terms. While the choice of a basis (interpreted as a…Christian de Ronde, Raimundo Fernandez Moujan, Cesar Massri·Apr 23, 2024SaveLearn
The quantum gravity seeds for laws of natureWe discuss the challenges that the standard (Humean and non-Humean) accounts of laws face within the framework of quantum gravity where space and time may not be fundamental. This paper identifies…Vincent Lam, Daniele Oriti·Apr 18, 2024SaveLearn
The birth of StatPhys: The 1949 Florence conference at the juncture of national and international physics reconstruction after World War IIIn spring 1949 about 70 physicists from eight countries met in Florence to discuss recent trends in statistical mechanics. This scientific gathering, co-organized by the Commission on Thermodynamics…Roberto Lalli, Paolo Politi·Apr 18, 2024SaveLearn
The emergence of spacetime: what role for functionalism?Among the various attempts to formulate a theory of quantum gravity, a class of approaches suggests that spacetime, as modeled by general relativity, is destined to fade away. A major issue becomes…Emilia Margoni, Daniele Oriti·Apr 17, 2024SaveLearn
The Black Hole Idealization ParadoxStephen Hawking's derivation of Hawking radiation relied on one particular spacetime model, that of a star collapsing into a black hole which then remains in existence forever. He then argued that…Dominic Ryder·Apr 15, 2024SaveLearn
Founding the First Chemistry Laboratory in Russia: Mikhail Lomonosov's ProjectThis article, the third in a series about the Russian scientist Mikhail Lomonosov (1711-1765), covers the first decade of his research at the St. Petersburg Academy of Sciences, from his return from…Robert P. Crease, Vladimir Shiltsev·Apr 12, 2024SaveLearn
Creative and geometric times in physics, mathematics, logic, and philosophyWe distinguish two different concepts of time that play a role in physics: geometric time and creative time. The former is the time of deterministic physics and merely parametrizes…Flavio Del Santo, Nicolas Gisin·Apr 9, 2024SaveLearn
Did Louis de Broglie miss the discovery of the Schr\"odinger equation?In this note, we discuss a historical point regarding Schr\"odinger's discovery of the famous quantum wave equation in 1926 following de Broglie's fundamental works published in 1923-1925 regarding…Aurélien Drezet·Apr 9, 2024SaveLearn
E. Amaldi, C. Dilworth, G.P.S. Occhialini on F.G. HoutermansIn the Occhialini-Dilworth Archives of the University of Milan are preserved four typescripts by E. Amaldi, dealing with F.G. Houtermans, German physicist, who fled to the USSR to escape the Nazis.…Pasquale Tucci·Apr 8, 2024SaveLearn