Galileo knowledge of optics and the functioning of the telescope revisedWhat are the historical evidence concerning the turning of the spyglass into an astronomical instrument, the telescope? In Sidereus Nuncius and in his private correspondence Galileo tells the reader…Yaakov Zik, Giora Hon·Jul 18, 2013SaveLearn
Teaching physics during the 17th century: some examples from the works of Evangelista TorricelliThis paper is proposing some physics problems from a book, De Motu Gravium Naturaliter Descendentium, written by Evangelista Torricelli, with the aim of showing how physics was taught in a…Amelia Carolina Sparavigna·Jul 17, 2013SaveLearn
The first colliders: AdA, VEP-1 and Princeton-StanfordWe discuss the first three particle colliders : AdA, VEP-1 and CBXV. Shiltsev·Jul 11, 2013SaveLearn
Neutrino experiments in Physics Department of Rome Sapienza UniversityThis paper describes the history of experimental neutrino physics in the physics department of Rome Sapienza UniversityUbaldo Dore·Jul 9, 2013SaveLearn
Anybody but Hubble!The recent literature of astronomy and cosmology has included a good many suggestions for "who first recognized the expansion of the universe?" with cases having been made for Lemaitre,…Virginia Trimble·Jul 8, 2013SaveLearn
The 1905 Relativity Paper and the "Light Quantum"In 1905 the well-known physicist Max Planck was coeditor of the Annalen der Physik, and he accepted Einstein's paper on light quanta for publication, even though he disliked the idea of…Galina Weinstein·Jul 8, 2013SaveLearn
On the Eclipse of Thales, Cycles and ProbabilitiesAccording to classical tradition, Thales of Miletus predicted the total solar eclipse that took place on 28 May 585 BCE. Even if some authors have flatly denied the possibility of such a prediction,…Miguel Querejeta·Jul 8, 2013SaveLearn
Astronomical orientations in sanctuaries of DauniaPrehistoric sanctuaries of Daunia date back several thousand years. During the Neolithic and Bronze Age the farmers in that region dug hypogea and holes whose characteristics suggest a ritual use. In…E. Antonello, V. F. Polcaro, A. M Tunzi Sisto et al.·Jul 8, 2013SaveLearn
Die weltweit erste Messung einer Lotabweichung in der LängeDuring the summer of 1837 Christian Ludwig Gerling, a former student of Carl Friedrich Gauss, organized the world wide first determination of a vertical deflection in longitude. From a mobile…Andreas Schrimpf·Jul 6, 2013SaveLearn
Science and Philosophy: A Love-Hate RelationshipIn this paper I review the problematic relationship between science and philosophy; in particular, I will address the question of whether science needs philosophy, and I will offer some positive…Sebastian De Haro·Jul 4, 2013SaveLearn
The Art of Memory and the Growth of the Scientific MethodI argue that European schools of thought on memory and memorization were critical in enabling the growth of the scientific method. After giving a historical overview of the development of the memory…Gopal Sarma·Jul 1, 2013SaveLearn
Wavefunction reality, indeterminate properties and degrees of presenceThe degree-of-presence (of the quantum system) concept, accompanying that of the wavefunction-reality postulate, is introduced and studied in two ways. To begin with, an incomplete exposition of the…Fedor Herbut·Jun 29, 2013SaveLearn
Kenneth Geddes Wilson, 1936-2013, An AppreciationKenneth G. Wilson made deep and insightful contributions to statistical physics, particle physics, and related fields. He was also a helpful and thoughtful human being.Leo P. Kadanoff·Jun 29, 2013SaveLearn
Physical Determination of the ActionThe objective is a foundation of physics from the operationalization of its basic observables. We begin with classical and relativistic kinematics. Seizing on a programmatic proposal by Heinrich…Bruno Hartmann·Jun 28, 2013SaveLearn
Bernard Yarnton Mills 1920-2011Bernie Mills is remembered globally as an influential pioneer in the evolving field of radio astronomy. His contributions with the 'Mills Cross' at the CSIRO Division of Radiophysics and…R. H. Frater, W. M. Goss, H. W. Wendt·Jun 26, 2013SaveLearn
Majorana, Pauling and the quantum theory of the chemical bondWe discuss in detail very little known results obtained by Majorana as early as 1931, regarding the quantum theory of the chemical bond in homopolar molecules, based on the key concept of exchange…S. Esposito, A. Naddeo·Jun 26, 2013SaveLearn
Prehistoric sanctuaries in DauniaDaunia is a region in northern Apulia with many interesting archaeological sites, particularly of the Neolithic and Bronze Age. Beginning from the fifth millennium BC, the farmers living in the wide…E. Antonello, V. F. Polcaro, A. M. Tunzi et al.·Jun 25, 2013SaveLearn
Geometrie und Astronomie im Stadtplan des hethitischen SarissaThe Hittite city Sarissa was founded in the 16th century BC and has been systematically constructed. The city gates and the bigger public buildings were arranged at about 45° relative to the cardinal…Andreas Müller-Karpe, Vuslat Müller-Karpe, Andreas Schrimpf·Jun 24, 2013SaveLearn
Physical Relativism as an Interpretation of ExistenceDespite the success of modern physics in formulating mathematical theories that can predict the outcome of quantum-scale experiments, the physical interpretations of these theories remain…Stuart Heinrich·Jun 23, 2013SaveLearn
Study of the possibility of eliminating the Gibbs paradox within the framework of classical thermodynamicsThe formulas for the entropy of ideal gases mixture and the entropy change in mixing of ideal gases on the basis of the third law of thermodynamics were obtained. It is shown that when using these…V. Ihnatovych·Jun 21, 2013SaveLearn
A possible role of sunrise/sunset azimuth in the planning of ancient Chinese townsIn the planning of some Chinese towns we can see an evident orientation with the cardinal north-south direction. However, other features reveal a possible orientation with the sunrise/sunset azimuth…Amelia Carolina Sparavigna·Jun 20, 2013SaveLearn
Einstein, the reality of space, and the action-reaction principleEinstein regarded as one of the triumphs of his 1915 theory of gravity --- the general theory of relativity --- that it vindicated the action--reaction principle, while Newtonian mechanics as well as…Harvey R. Brown, Dennis Lehmkuhl·Jun 20, 2013SaveLearn
Reichenbach's Transcendental ProbabilityThe aim of this article is twofold. First, we shall review and analyse the Neo-Kantian justification for the application of probabilistic concepts in physics that was defended by Hans Reichenbach…Fedde Benedictus, Dennis Dieks·Jun 18, 2013SaveLearn
Remembering Manfred Bonitz (7.3.1931 -- 14.8.2012) on the first anniversary of his deathBiographical essay at the occasion of the first death anniversary of Manfred BonitzMichael Bonitz, Andrea Scharnhorst·Jun 17, 2013SaveLearn
No categorial support for radical ontic structural realismRadical ontic structural realism (ROSR) asserts an ontological commitment to 'free-standing' physical structures understood solely in terms of fundamental relations, without any recourse to…Vincent Lam, Christian Wuthrich·Jun 12, 2013SaveLearn