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Classical Physics papers — page 193

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On the satiability of floating bodies
The potential energy of a system in stable equilibrium has a minimum value. This property is used to derive a formula that is useful in determi- nation of stability of a floating body. It is found…
Mohammad AbolhassaniNov 29, 2004
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Differential aging from acceleration, an explicit formula
We consider a clock 'paradox' framework where an observer leaves an inertial frame, is accelerated and after an arbitrary trip comes back. We discuss a simple equation that gives, in the 1+1…
E. MinguzziNov 25, 2004
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Rectangular Parallelepiped Vibration in Plane Strain State
In this paper we present a vibration spectrum of a homogenous parallelepiped (HP) under the action of volume and surface forces resulting from the exponent displacements entering the Fourier…
Jerzy HanckowiakNov 25, 2004
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Inference of Schrödinger's Equation from Classical-Mechanical Solution
We set up the classical wave equation for a particle formed of an oscillatory zero-rest-mass charge together with its resulting electromagnetic waves, traveling in a potential field V in a…
J. X. Zheng-Johansson, P-I. JohanssonNov 15, 2004
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Electrodynamics on the Moebius Strip
In this diploma work electrostatics and -dynamics of two dimensional structures are examined. Mathematica is used for visualisation and packages for Mathematica have been programmed which use…
Gernot PauschenweinNov 15, 2004
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Mechanical Resonance of embedded cluster
Embedded clusters, which are embedded in bulk materials and different from the surroundings in structures, should be common in materials. This paper studies resonance of such clusters. This work is…
Zhenying Wen, Hong ZhaoNov 10, 2004
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Group velocity of the acoustic eigen-modes in sonic crystals
In this brief report, the group velocity of the eigen-modes in sonic crystals is derived, and shown to equal the averaged energy velocity of the eigen-modes. How the group velocity can be used to…
Zhen YeNov 6, 2004
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Special Relativity: Einstein's Spherical Waves versus Poincare's Ellipsoidal Waves
We show that the image by the Lorentz transformation of a spherical (circular) light wave, emitted by a moving source, is not a spherical (circular) light wave but an ellipsoidal (elliptical) light…
Dr. Yves PierseauxNov 4, 2004
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Linear media in classical electrodynamics and the Post constraint
The Maxwell equations are formulated in a generally covariant and metric-free way in 1+3 and subsequently in 4 dimensions. For this purpose, we use the excitations D, H and the field…
Friedrich W. Hehl, Yuri N. ObukhovNov 3, 2004
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Blackbody Radiation, Conformal Symmetry, and the Mismatch Between Classical Mechanics and Electromagnetism
The blackbody radiation problem within classical physics is reviewed. It is again suggested that conformal symmetry is the crucial unrecognized aspect, and that only scattering by classical…
Timothy H. BoyerNov 3, 2004
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On the motion of a classical charged particle
We show that the Lorentz-Dirac equation is not an unavoidable consequence of energy-momentum conservation for a point charge. What follows solely from conservation laws is a less restrictive equation…
J. M. Aguirregabiria, J. Llosa, A. MolinaNov 3, 2004
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Acoustic scattering by periodic arrays of air-bubbles
This paper considers acoustic scattering by and propagation through line and plane arrays of air-bubbles in liquid media. The self-consistent method is used to derive the effective scattering…
Zhen YeOct 31, 2004
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A New Kinematical Derivation of the Lorentz Transformation and the Particle Description of Light
The Lorentz Transformation is derived from only three simple postulates: (i) a weak kinematical form of the Special Relativity Principle that requires the equivalence of reciprocal space-time…
J. H. FieldOct 27, 2004
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From classical to modern ether-drift experiments: the narrow window for a preferred frame
Modern ether-drift experiments look for a preferred frame by measuring the difference Δνin the relative frequencies of two cavity-stabilized lasers, upon local rotations of the apparatus or under the…
M. Consoli, E. CostanzoOct 25, 2004
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Numerical analysis of flow characteristics of an atmospheric plasma torch
The atmospheric plasma is regarded as an effective method for surface treatments because it can reduce the period of process and does not need expensive vacuum apparatus. The performance of…
Youn J. Kim, You-Jae Kim, J. -G. HanOct 25, 2004
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Surprising Symmetries in Relativistic Charge Dynamics
The eigenspinor approach uses the classical amplitude of the algebraic Lorentz rotation connecting the lab and rest frames to study the relativistic motion of particles. It suggests a simple…
William E. BaylisOct 21, 2004
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A Note on the Lorentz Transformations for Photon
We discuss transormation laws of electric and magnetic fields under Lorentz transformations, deduced from the Classical Field Theory. It is found that we can connect the resulting expression for a…
Valeri V. Dvoeglazov, J. L. Quintanar GonzalezOct 20, 2004
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Shift and broadening of sodium nS-3P and mD-3P transitions in high pressure NaCd and NaHg discharges
We report measurements of the Stark shifts and Stark widths of sodium spectral lines corresponding to nS-3P and mD-3P transitions. Measurements have been made on AC driven high pressure NaHg and NaCd…
Z. Miokovic, D. Balkovic, D. VezaOct 19, 2004
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Quasi-geostrophic kinematic dynamos at low magnetic Prandtl number
Rapidly rotating spherical kinematic dynamos are computed using the combination of a quasi geostrophic (QG) model for the velocity field and a classical spectral 3D code for the magnetic field. On…
Nathanael Schaeffer, Philippe CardinOct 19, 2004
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Hamiltonian treatment of time dispersive and dissipative media within the linear response theory
We develop a Hamiltonian theory for a time dispersive and dissipative (TDD) inhomogeneous medium, as described by a linear response equation respecting causality and power dissipation. The canonical…
A. Figotin, J. H. SchenkerOct 18, 2004
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Self-stresses and Crack Formation by Particle Swelling in Cohesive Granular Media
We present a molecular dynamics study of force patterns, tensile strength and crack formation in a cohesive granular model where the particles are subjected to swelling or shrinkage gradients.…
Moulay Said El Youssoufi, Jean-Yves Delenne, Farhang RadjaiOct 15, 2004
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Global and local perspectives of gravitationally assisted negative-phase-velocity propagation of electromagnetic waves in vacuum
Consistently with the Einstein equivalence principle and using an electromagnetic formulation first suggested by Tamm, we show that a local observer cannot observe negative-phase-velocity (NPV)…
Akhlesh Lakhtakia, Tom G. Mackay, Sandi SetiawanSep 30, 2004
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On possible skewon effects on light propagation
We start from a local and linear spacetime relation between the electromagnetic excitation and the field strength. Then we study the generally covariant Fresnel surfaces for light rays and light…
Yuri N. Obukhov, Friedrich W. HehlSep 29, 2004
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Where will a pen fall to?
We propose a simple experiment that everybody can carry out just while reading this paper. The only thing we need is a pen or a pencil and a finger. The dynamics of the falling pen, which is in touch…
Veniamin A. Abalmassov, Dmitri A. MaljutinSep 29, 2004
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Geodesics and distance in classical physics
We formulate geodesics on a manifold in terms of a parallel transfer of a particle state vector transformed by local Lorentz and Yang-Mills symmetry groups. This formulation leads to an introduction…
A. N. GrigorenkoSep 25, 2004
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