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Volume 30: Pages 356-363, 2017
Some subtle concepts in fundamental physics
Ying-Qiu Gua)
School of Mathematical Science, Fudan University, Shanghai 200433, China
In this paper, we discuss some subtle concepts, such as coordinate, measurement, simultaneity, Lorentz–FitzGerald contraction, and singularity in fundamental physics. The explanations of these concepts in textbooks are usually incomplete and lead to puzzles. Some longstanding paradoxes such as the Ehrenfest one are caused by misinterpretation of these concepts. The analysis shows that all these concepts have simple and naive meanings and can be well understood by using a suitable logical procedure. The discussion may shed light on some famous paradoxes and provide some new insights into the structure and features of a promising unified field theory.
Dans cet article, nous discutons des concepts subtils, tels que les coordonnées, les mesures, la simultanéité, la contraction de Lorentz-FitzGerald, la singularité de la physique fondamentale. L'explication usuelle de ces concepts dans les livres scolaires est incomplète et entraîne des confusions. Certains paradoxes de longue date comme le paradoxe d’Ehrenfest, sont causés par une mauvaise interprétation de ces concepts. L'analyse montre que ces concepts ont tous des significations simples et naïves, et peuvent être bien compris par une procédure logique et appropriée. La discussion peut clarifier certains paradoxes célèbres, et fournir de nouvelles idées sur la structure d’une théorie prometteuse des champs unifiés.
Key words: Simultaneity; Singularity; Energy; Entropy.
Received: May 24, 2017; Accepted: August 23, 2017; Published Online: September 19, 2017
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