| 词汇 | electromagnetism |
| 释义 | electromagnetism noun[ U ] physics specializeduk /iˌlek.trəʊˈmæɡ.nə.tɪ.zəm/ us /iˌlek.troʊˈmæɡ.nə.tɪ.zəm/ the science of magnetism and electrical currents电磁学 Electricity & electronics anodize anti-static arc bitstream brownout capacitance chargeable electricity generate high-voltage homing linesman magnet multimeter negatively non-electric non-electrical non-electronic solid-state transistorized Sharks have all the senses that people do, but they also have a sixth sense: electromagnetism. But if it were so, we might apparently hope, by experiments in electromagnetism, to obtain absolute motion, and to place in evidence the translation of the earth relatively to the ether. This is accomplished through the utilization of the phenomena of electromagnetism. Examples of electromagnetismelectromagnetism In order to discretize the fundamental laws of electromagnetism properly, it is important to appreciate their link with differential geometry and algebraic topology (cohomology theory). The book is strong on history, not only of plasma, but also of atomic physics and electromagnetism. I aim to convey the richness in subtle mathematical features displayed by apparently 'simple' problems in computational electromagnetism. We also realize a significant difference between the models for acoustics and electromagnetism. I was pleased to witness a surge in research activities into mathematical aspects of computational electromagnetism in recent years. Due to their relevance for electromagnetism, we will largely restrict our attention to 1-forms in three dimensions. In electromagnetism the electric and magnetic energies of a field are perfectly symmetric. From the experimentally measured reflectivity, electromagnetism allows calculating the conductivity of metallized water. Others were concerned with specific research topics he had himself pursued, such as, for instance, vision, electromagnetism, and geometry. Although his primary research interest was the unification of electromagnetism and gravitation he was aware of other developments. He likewise hoped that the unification of electromagnetism and gravitation would similarly yield particle-like solutions endowed with electric charge. Theoretical computational electromagnetism is a huge area and this article can cover only a fraction of it. Under the general relativistic formalism, electromagnetism in a moving medium can be described by replacing the medium with an optical metric. In linear theories such as quantum mechanics and classical electromagnetism, the presence of singularities in reduced systems, and their consequences are understood. There is a close relationship between second-order elliptic equations and the governing equations of electromagnetism, but the lack of strong ellipticity introduces subtle new challenges. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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