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Art wrote:
"I thought you had a trackrecord in academics so you had an understanding of Maxwell`s laws." Maxwell`s equations are necessary and sufficient to describe radiation from any antenna. I long ago suggested in this newsgroup that Art read a fine book, "Radio-Electronic Transmission Fundamentals" by B. Whitfield Griffith,Jr., now reprinted by Scitech Publishing Inc. In the first chapter Griffith gives a brief history of electrical knowledge. On page 3 he says: "We had, for instance, Coulomb`s law, relating to electric charge and the mechanical force it produces; Ampere`s Rule, connecting current and magnetism; Gauss` law, giving the relationship between electric charge and the field of the electric potential; Ohm`s law, relating voltage, current, and resistance; and Faraday`s law, concerning the relationship between the magnetic field and the induced voltage. Nothing seemed to tie these miscellanious relationships together, althoigh they appeared to pertain to the same general subject. Perhaps it was the working of a fateful pattern, perhaps mere coincidennce, that there was born in the same year that Faraday made his great discovery the man who was destined to correlate and organize all these separate rules into the modern electromagnetic theory." "Maxwell`s Generalization" This posting is long enough so I`ll stop. Best regards, Richard Harrison, KB5WZI |
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