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![]() "Szczepan Bialek" wrote in message ... "Dave" wrote ... "Szczepan Bialek" wrote in message ... "Dave" wrote ... "Szczepan Bialek" wrote in message ... In the History you find how many people analysed the issue: longitudinal vs. transversal. In 1905 all stop. But after 1905 peole build antennas. And they do not worry what the radiation is like. Sunner or later the issue appears again. S* only when time travelers bring back scientists from the 1800's... or people like you try to reinvent the discarded theories of old. Some theories are taught some not. But people after 25 can use what they want. It seems to me that engineering people do not use the EM theory. S* Theories that aren't taught have probably been dropped for a good reason. usually because they are wrong or don't do anything useful. I don't know about other engineers but i use EM theory, all my antennas were designed using it, and i test it regularly with my own equipment... it has never failed me. You do not use the EM theory. In EM no electrons. You use electrons: "Electronics is a branch of science and technology that deals with the flow of electrons through nonmetallic conductors, mainly semiconductors such as silicon. It is distinct from electrical science and technology, which deal with the flow of electrons and other charge carriers through metal conductors such as copper. This distinction started around 1906 with the invention by Lee De Forest of the triode. Until 1950 this field was called "radio technology" because its principal application was the design and theory of radio transmitters, receivers and vacuum tubes." Electrons never failed us. if you want to talk with MODERN engineers, then you should use MODERN definitions. i don't know who wrote that wikipedia definition but you would find it very hard to work with just non-metalic stuff in the electronics I know. even the smallest integrated circuits use metalic conductors to connect components and for connections to the outside world. All radios (aren't radios electronic) use metallic antennas in one form or another... check some other definitions: the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices wordnet.princeton.edu/perl/webwn electronic - of or relating to electronics; concerned with or using devices that operate on principles governing the behavior of electrons; "electronic devices" wordnet.princeton.edu/perl/webwn the branch of technology concerned with the development and application of circuits or systems using electron devices, including magnetic amplifiers, transistors http://www.tki.org.nz/r/technology/c...m/p85_86_e.php electronic - Pertaining to the energies, distributions, and behaviors of electrons; see mechanical. e-drexler.com/d/06/00/Nanosystems/glossary/glossary_e.html do not 'electronic devices' include transformers?? aren't most of them made out of metallic conductors?? what about capacitors, don't most of them have metallic plates? magnetic amplifiers are most definately made of metallic conductors. EM or ElectroMagnetic theory does indeed include charged particles. Maxwell's equations are definately based on charged particles. just where does the 'i' term come from if not from moving charges? and where does the charge term in art's favorite Gauss' law that is part of Maxwell's equations come from if not from charged particles?? |
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