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pro vyhledávání: '"Glenn S. Smith"'
Autor:
Glenn S. Smith
Publikováno v:
IEEE Antennas and Propagation Magazine. 58:96-108
In this article, we examine one of Heinrich Hertz's (1857-1894) experiments: a measurement for the interference of electromagnetic waves in air (the experimentum crucis). This experiment showed, for the first time, that electromagnetic waves exist in
An experimental demonstration for a well-known example of Faraday’s law of electromagnetic induction
Autor:
Glenn S. Smith
Publikováno v:
European Journal of Physics. 42:015203
One of the more interesting applications of the integral form of Faraday’s law of electromagnetic induction is to an open surface whose contour is changing with time. An often-used theoretical example for this is a track formed from two parallel, c
Publikováno v:
2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
The life, career, and technical accomplishments of Professor Ronold W. P. King are chronicled. His academic tenure at Harvard University spanned all or parts of eight decades, and his legacy is perhaps best defined by the fundamental nature of his re
Autor:
Glenn S. Smith
Publikováno v:
European Journal of Physics. 40:045202
Autor:
Glenn S. Smith
Publikováno v:
American Journal of Physics. 81:907-917
In the early 1830s, Michael Faraday performed his seminal experimental research on electromagnetic induction, in which he created the first electric dynamo—a machine for continuously converting rotational mechanical energy into electrical energy. H
Autor:
Glenn S. Smith
Publikováno v:
European Journal of Physics. 33:307-314
In special relativity, the transformation between inertial frames for an electromagnetic plane wave is usually derived for the time-harmonic case (the field is a sinusoid of infinite duration), even though all practical waves are of finite duration a
Autor:
Glenn S. Smith
Publikováno v:
European Journal of Physics. 32:695-710
The electromagnetic field is determined for a time-varying electric dipole moving with a constant velocity that is parallel to its moment. Graphics are used to visualize this field in the rest frame of the dipole and in the laboratory frame when the
Autor:
Glenn S. Smith
Publikováno v:
American Journal of Physics. 79:282-290
An introductory treatment of guided waves is presented which differs from the traditional one based on an eigenvalue problem. The emphasis is on a description in terms of plane waves. A simple source is described in free space, and the electromagneti
Autor:
Glenn S. Smith
Publikováno v:
European Journal of Physics. 31:819-825
The time-average power radiated by a pair of infinitesimal dipoles is examined as their spacing is varied. The results elucidate the effect of the interaction of the dipoles on their radiation.
Autor:
Glenn S. Smith
Publikováno v:
American Journal of Physics. 77:1010-1019
Structural color is caused by wavelength-selective scattering of light by microscopic features, such as those on the scales of some insects. The brilliant blue displayed by some male Morpho butterflies is a classic example of this phenomenon. In this