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Classical Physics papers — page 145

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On Classical Ideal Gases
The ideal gas laws are derived from the democritian concept of corpuscles moving in vacuum plus a principle of simplicity, namely that these laws are independent of the laws of motion aside from the…
Jacques Arnaud, Laurent Chusseau, Fabrice PhilippeAug 18, 2011
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Resonant Behavior of an Augmented Railgun
We consider a lumped circuit model of an augmented electromagnetic railgun that consists of a gun circuit and an augmentation circuit that is inductively coupled to the gun circuit. The gun circuit…
Thomas B. Bahder, William C. McCorkleAug 17, 2011
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Brownian motion in typical microparticle systems
Many studies on microscopic systems deal with Brownian particles embedded in media whose densities are different from that of the particles, causing them either to sink or float. The proximity to a…
Silvana Palacios, Victor Romero-Rochin, Karen Volke-SepulvedaAug 16, 2011
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Force chains and contact network topology in packings of elongated particles
By means of contact dynamic simulations, we investigate the contact network topology and force chains in two-dimensional packings of elongated particles modeled by rounded-cap rectangles. The…
Émilien Azema, Farhang RadjaïAug 16, 2011
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Chandrasekhar Theory of Ellipsoidal Electromagnetic Scatterers
A number of new problems in remote sensing and identification of buried compact metallic targets motivate the search for new models that, if not exact, at least enable extremely rapid numerical…
Peter B. WeichmanAug 10, 2011
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Electromechanical Wave Green's Function Estimation from Ambient Electrical Grid Frequency Noise
Many electrical grid transients can be described by the propagation of electromechanical (EM) waves that couple oscillations of power flows over transmission lines and the inertia of synchronous…
Scott Backhaus, Yilu LiuAug 8, 2011
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Experimental demonstration of a free space cylindrical cloak without superluminal propagation
We experimentally demonstrated an alternative approach of invisibility cloaking that can combine technical advantages of all current major cloaking strategies in a unified manner and thus can solve…
Su Xu, Xiangxiang Cheng, Sheng Xi et al.Aug 4, 2011
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Energy and Angular Momentum Storage in a Rotating Magnet
We consider a cylindrical metallic magnet that is set into rotation about a horizontal axis by a falling mass. In such a system the magnetic field will cause a radial current which is non-solenoidal.…
H. S. Mani, Praveen Pathak, Vijay A. SinghAug 4, 2011
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Acoustic guiding and subwavelength imaging with sharp bending by sonic crystal
A sharp bending scheme for the self-collimation of acoustic waves is proposed by simply truncating the sonic crystals. An all-angle and wide-band 90°-bending wave guide is demonstrated with nearly…
Bo Li, Ke Deng, Heping ZhaoAug 3, 2011
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On the c equivalence principle and its relation to the weak equivalence principle of general relativity
We clarify the status of the c equivalence principle (cu=c) recently proposed by Heras et al JoseAJP2010,JoseEJP2010 and show that its proposal leads to an extension of the current…
T. C. ChoyJul 31, 2011
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On the Propagation of Slip Fronts at Frictional Interfaces
The dynamic initiation of sliding at planar interfaces between deformable and rigid solids is studied with particular focus on the speed of the slip front. Recent experimental results showed a close…
David S. Kammer, Vladislav A. Yastrebov, Peter Spijker et al.Jul 29, 2011
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One dimension spring supported ball on top of a sinusoidal vibrating plate: A forced oscillation simulation using molecular dynamics method
A ball supported by a spring is set on top of a plate which is sinusoidal vibrated. The motion is limited to one dimension motion. It is assumed that the spring is an ideal one with zero mass. The…
Sparisoma Viridi, Wahyu Srigutomo, Wahyu Hidayat et al.Jul 28, 2011
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Fractional Powers of Derivatives in Classical Mechanics
Fractional analysis is applied to describe classical dynamical systems. Fractional derivative can be defined as a fractional power of derivative. The infinitesimal generators H, . and L=G(q,p)…
Vasily E. TarasovJul 28, 2011
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Isochronic Pendulum
The classic simple pendulum is a device which works as a simple harmonic oscillator (S.H.M.) only approximately. The time period remains fixed as long as the amplitude is kept sufficiently small.…
Sumit KumarJul 28, 2011
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Time domain radiation and absorption by subwavelength sources
Radiation by elementary sources is a basic problem in wave physics. We show that the time-domain energy flux radiated from electromagnetic and acoustic subwalength sources exhibits remarkable…
E. Bossy, R. CarminatiJul 21, 2011
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Common mistakes on "the production of electromagnetic waves" in many popular textbooks
The present article uncovers a common mistake in many college physics textbooks, specifically, on its presentation and interpretation about generation and propagation of electromagnetic waves. It is…
Fulin ZuoJul 21, 2011
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Rolling of asymmetric disks on an inclined plane
In a recent papers, Turner and Turner (2010 Am. J. Phys. 78 905-7) and Jensen (2011 Eur. J. Phys. 32 389-397) analysed the motion of asymmetric rolling rigid bodies on a…
Ben Yu-Kuang HuJul 20, 2011
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Analogy of the grounded conducting sphere image problem with mirror optics
We show that in the grounded conducting sphere image problem, all the necessary information about the image charge can be found from a mirror equation and a magnification formula. Then, we propose a…
Kolahal BhattacharyaJul 20, 2011
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The Creation and Propagation of Radiation: Fields Inside and Outside of Sources
We present a new algorithm for computing the electromagnetic fields of currents inside and outside of finite current sources, for arbitrary time variations in the currents. Unexpectedly, we find that…
Stanislaw Olbert, John W. Belcher, Richard H. PriceJul 19, 2011
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Any Classical Description of Nature Requires Classical Electromagnetic Zero-Point Radiation
Any attempt to describe nature within classical physics requires the presence of Lorentz-invariant classical electromagnetic zero-point radiation so as to account for the Casimir forces between…
Timothy H. BoyerJul 18, 2011
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The Blackbody Radiation Spectrum Follows from Zero-Point Radiation and the Structure of Relativistic Spacetime in Classical Physics
The analysis of this article is entirely within classical physics. Any attempt to describe nature within classical physics requires the presence of Lorentz-invariant classical electromagnetic…
Timothy H. BoyerJul 18, 2011
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Modeling near-field radiative heat transfer from sharp objects using a general 3d numerical scattering technique
We examine the non-equilibrium radiative heat transfer between a plate and finite cylinders and cones, making the first accurate theoretical predictions for the total heat transfer and the spatial…
Alexander P. McCauley, M. T. Homer Reid, Matthias Krüger et al.Jul 11, 2011
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Long wave runup on random beaches
The estimation of the maximum wave sunup height is a problem of practical importance. Most of the analytical and numerical studies are limited to a constant slope plain shore and to the classical…
Denys Dutykh, Céline Labart, Dimitrios MitsotakisJul 7, 2011
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La relativeca tempo -- II / The relativistic time -- II
The theory of relativity showed that several Newtonian ideas about spacetime are imperfect. We present here some relativistic concepts related to these ideas: simultaneity of events and…
F. M. Paiva, A. F. F. TeixeiraJul 7, 2011
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Orbits of the Kepler problem via polar reciprocals
It is argued that, for motion in a central force field, polar reciprocals of trajectories are an elegant alternative to hodographs. The principal advantage of polar reciprocals is that the…
E. D. DavisJul 5, 2011
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