From the epicycles of the Greeks to Kepler's ellipse - The breakdown of the circle paradigmThe principle that celestial bodies must move on circular orbits or on paths resulting from the composition of circular orbits has been assumed as a constant guide in the astronomical thougth of the…Dino Boccaletti·Jul 16, 2001SaveLearn
The Feynman Path Goes Monte CarloPath integral Monte Carlo (PIMC) simulations have become an important tool for the investigation of the statistical mechanics of quantum systems. I discuss some of the history of applying the Monte…Tilman Sauer·Jul 5, 2001SaveLearn
The invention of the quantum energy concept according to PlanckA hundred years ago, the quantum concept provoked a revolution in science and the search of a new conceptual basis for whole physics, as emphasized by Einstein. In this paper, I discuss the essential…Nelson Studart·Jun 12, 2001SaveLearn
Beyond the Physics of Logic: Aspects of Transcendental Materialism or URAM in a Modern ViewIt has been shown at other occasions that recent results of modern physics can be used to shed some more light onto the foundations of the world, provided the actual task of philosophy is being…Rainer E. Zimmermann·May 28, 2001SaveLearn
The Depth and Breadth of John Bell's PhysicsJohn Bell's investigations in foundations of quantum mechanics, particle physics, and quantum field theory are recalled.R. Jackiw, A. Shimony·May 16, 2001SaveLearn
Do the Laws of Nature and Physics Agree About What is Allowed and Forbidden?There are countless examples in the history of science that not only were the laws of physics often incomplete and more limited in their domain of validity than was realized, but at times they missed…Mario Rabinowitz·Mar 31, 2001SaveLearn
NeutrinosThe general status of neutrino physics are given. The history of the neutrino, starting from Pauli and Fermi, is presented. The phenomenological V-A theory of the weak interaction and the unified…S. M. Bilenky·Mar 28, 2001SaveLearn
Independence of events and quantum structure of the light in Einstein's special relativityIn the history of physics 1905 can be considered as the year of Einstein's proclamation of independence of events. Indeed the concept of independent events occupies a essential place in the three…Y. G. A. Pierseaux·Feb 3, 2001SaveLearn
The Speed of Light and Puranic CosmologyWe survey early Indian ideas on the speed of light and the size of the universe. A context is provided for Sayana's statement (14th century)that the speed is 2,202 yojanas per half nimesha…Subhash Kak·Jan 15, 2001SaveLearn
Birth and Early Development of Indian AstronomyThis paper provides an overview of the birth and early development of Indian astronomy. Taking account of significant new findings from archaeology and literary analysis, it is shown that early…Subhash Kak·Jan 15, 2001SaveLearn
Reductionism, Emergence, and Effective Field TheoriesIn recent years, a change in attitude in particle physics has led to our understanding current quantum field theories as effective field theories (EFTs). The present paper is concerned with the…Elena Castellani·Jan 6, 2001SaveLearn
Yajnavalkya and the Origins of Puranic CosmologyThis paper shows that characteristic features of Puranic cosmology, such as alternating cosmic continents and oceans of successively doubling areas, can be traced to Vedic texts. The Rigveda speaks…Subhash Kak·Jan 1, 2001SaveLearn
A Natural Concept of Image in the Physics of fr. Alonso de la VeracruzAlonso de la Veracruz conducted a physical study of image, regarding the activities of Soul in which image is produced, as organic operations. This research was particularly important since, at that…Armando Barrañón·Jan 1, 2001SaveLearn
A Historical Perspective on the Topology and Physics of HyperspaceThis paper examines the history of the development of dimensional analysis, from Euclidean geometry to hyperspace. This is largely a secondary source work intended to summarize, as briefly as…Ian T. Durham·Nov 18, 2000SaveLearn
On Wolfgang Pauli's most important contributions to physicsAfter some brief biographical notes, Wolfgang Pauli's main contributions to general relativity, quantum theory, quantum field theory, and elementary particle physics are reviewed. A detailed…Norbert Straumann·Oct 2, 2000SaveLearn
The birth of special relativity. "One more essay on the subject"Special relativity was discovered at the eve of the century, but finds its roots in the 19th century efforts to understand the optics and electromagnetism of moving bodies. These roots are reviewed…J. Reignier·Aug 28, 2000SaveLearn
The interpretations by experimenters of experiments on 'time dilation': 1940-1970 circaExperimental tests on `time dilation' began in 1938 with Ives and Stilwell's work of the transverse Doppler effect due to atoms in inertial flight. Rossi and Hall (1941) inaugurated the era…Ilaria Bonizzoni, Giuseppe Giuliani·Aug 4, 2000SaveLearn
A Review Essay: "Lise Meitner and the Dawn of the Nuclear Age", by Patricia RifeThe recently published book, ``Lise Meitner and the Dawn of the Nuclear Age'', by Patricia Rife (Boston: Birkhäuser, 1999) is reviewed in an essay for the lay audience. Meitner was a leading…Gary R. Goldstein·Jul 5, 2000SaveLearn
Rhythmos, Diathige, TropeIt is argued that properties of Democritus' atoms parallel those of volume forms in differential geometry. This kind of atoms has not "size" of finite magnitude. ----- Se arguye que las…Alejandro Rivero·Jun 26, 2000SaveLearn
Fiber Bundle Gauge Theories and "Field's Dilemma"We propose a distinction between the physical and the mathematical parts of gauge field theories. The main problem we face is to uphold a strong and meaningful criterion of what is physical. We like…Yair Guttmann, Holger Lyre·May 19, 2000SaveLearn
The singular points of Einstein's UniverseShort note by Marcel Brillouin on the representation of the mass point in general relativity.M. Brillouin·Feb 3, 2000SaveLearn
Innovators and Interpreters: The Historic Role of Women in ScienceUntil this century, the number of working female scientists has been indeterminate. Prevailing wisdom indicates that women, historically, have not excelled in the mathematics and sciences, for…Gina Hamilton·Jan 12, 2000SaveLearn
On the gravitational field of a sphere of incompressible fluid according to Einstein's theoryCommunication by K. Schwarzschild to the Prussian Academy of Sciences, dealing with the gravitational field of a sphere of incompressible fluid.K. Schwarzschild·Dec 16, 1999SaveLearn
The factorization of the hypergeometric equationSchroedinger's famous quadruple of factorizations of the hypergeometric equation is archived hereErwin Schroedinger·Oct 2, 1999SaveLearn
On some functional transformations relative to linear PDEs of second orderSeminal result of Delsarte is archived hereJean Delsarte·Sep 29, 1999SaveLearn