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413 results for “physics”
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Research ArticleOpen accessEvery word in the titleTransformity: The Dependence of the Laws of Physics on Higher-Dimensional Coordinate TransformationsPaul S. WessonIn unified field theories with more than four dimensions, the form of the equations of physics in spacetime depends in general on the choice of coordinates in higher dimensions. The reason is that the group of coordinate transformations in (say) five dimensions is broader than in spacetime. This kind of gauge dependence is illustrated by two examples: a cosmological model … …Space Science International, Vol. 1, Issue 2 · 10 Dec 2013 · 9,625 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleApproaches to Learning in First Year University PhysicsRachel Wilson, Steve Georgakis, Manjula SharmaProblem statement: In recent decades, discipline specific ways of thinking and knowing have gained increased recognition in understanding learning. However, there has been little empirical research examining student approaches to learning within specific disciplines or, even more specifically, within different streams of study or in response to different curriculum within a discipline. Approach: The aim of this study was to … …Journal of Social Sciences, Vol. 8, Issue 2 · 25 Feb 2012 · 9,211 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDerivation of Potentially Important Masses for Physics and Astrophysics by Dimensional AnalysisDimitar ValevThe Hubble constant has been added in addition to the three fundamental constants (speed of light, gravitational constant and Planck constant) used by Max Planck, for derivation of the Planck mass by dimensional analysis. As a result, a general solution is found for the mass dimension expression m = γp m0, where m0 ≡ mp is the Planck mass, γ … …Physics International, Vol. 8, Issue 1 · 25 Oct 2017 · 9,138 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInformatics and Physics Models of Recognitions of DNA Replication and Their Biological ApplicationsKang Cheng, Chang Hua ZouWe initially propose concepts of Informative Intensity, Informative Response Intensity and Informative Flux, with different expressions. In a special expression of electrostatics, we describe Informative Intensity, Informative Response Intensity and Informative Flux in terms of electric field intensity, electric field force and electric field flux respectively. In a special expression of quantum mechanics, we originally propose a concept of Probability … …American Journal of Applied Sciences, Vol. 3, Issue 10 · 31 Oct 2006 · 6,869 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePhysics Models of Pronuclear Movements in EggsKang Cheng, Changhua ZouBased on published experimental data, Newton's laws, and Coulomb's law, we investigate natural and normal pronuclear movements in wild types of eggs and develop physics models to fit the experimental data quantitatively. The difference between our modeling calculated results and the experimental data is less than 20%. Our models explain why and how pronuclei move in even or in variant … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,743 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleApplication of an Enhanced (G'/G)-Expansion Method to Find Exact Solutions of Nonlinear PDEs in Particle PhysicsS.M. Rayhanul IslamThe enhanced (G'/G)-expansion method is very effective and powerful method to find the exact traveling wave solutions of nonlinear evolution equations. We choose the Phi-4 equation to illustrate the validity and advantages of this method. As a result, many exact traveling wave solutions are obtained, which include soliton, hyperbolic function and trigonometric function solutions. …American Journal of Applied Sciences, Vol. 12, Issue 11 · 13 Nov 2015 · 7,037 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEvolution of Time Concept in Physics and in PhilosophyC. Sivaram, Kenath Arun, O. V. KirenWhat is ’time’? This is a question that has perplexed many a physicist and philosophers alike. The perception of the passage of time appears ingrained in all biological systems where growth, evolution and decay of objects, etc. are measurable indicators of the passage of time. Here we look at various physical models of time, from Newtonian to relativistic. We also … …Physics International, Vol. 6, Issue 2 · 9 Jul 2015 · 8,957 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOn the Verification of the MultiverseThomas StenersenEverett, H. (1957). “Relative State” Formulation of Quantum Mechanics. Reviews of Modern Physics, 29(3), 454–462. https://doi.org/10.1103/revmodphys.29.454 Page, D. N. (2005). The lifetime of the universe. Journal of the Korean Physical Society, 49(2006), 711–714. https://doi.org/10.48550/arXiv.hep-th/0510003 Schrödinger, E. (1935). Die gegenwärtige Situation in der Quantenmechanik. Naturwissenschaften, 23(50), 844–849. https://doi.org/10.1007/bf01491987 Schwartz, M. D. (2014). Quantum Field Theory and the Standard Model. Cambridge University … …Physics International, Vol. 13, Issue 1 · 29 Nov 2022 · 8,352 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEarly Greek Astrophysics: The Foundations of Modern Science and TechnologyXenophon MoussasThe foundations of modern science and technology, metrology, experimental physics, theoretical physics, theoretical mathematics, astrophysics, including applied optics and spectroscopy go back to the Prehistoric, Presocratic, Classical and Hellenistic Greece. This tradition is well deep rooted in time, going back mainly to the epoch of the prehistoric Aegean sea, the mainland of Greece and the Islands, Cycladic, Euboea, as well … …Space Science International, Vol. 1, Issue 2 · 4 Feb 2014 · 8,679 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Rise of the Physical Sciences in “Stricto Sensu” The Developmental Approach and the History of SciencesGeorg W. OesterdiekhoffJ. Piaget dedicated several books and articles on the psychogenetic reconstruction of the history of sciences. A couple of disciples followed Piaget´s ideas and reconstructed the history of single disciplines or of some scientific developments in terms of developmental psychology. They found a striking similarity between childish psychological stages and the sciences in their premodern period. Correspondingly, they also found … …Physics International, Vol. 8, Issue 1 · 31 Oct 2017 · 8,636 accessesView PDFCite