钳子 发表于 2025-3-25 03:57:02
Applying the Techniques on Materials II,eld equations cannot be expressed without them. In this section we sketch out the basic tensor theory as far as we shall need it. That includes the metric tensor, the geodesic equations, the absolute derivative, and the curvature tensor. The reader may skim it lightly at first, and refer back to itnarcissism 发表于 2025-3-25 09:14:03
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Essential Relativity978-3-642-86650-0Series ISSN 1864-5879 Series E-ISSN 1864-5887mastopexy 发表于 2025-3-25 20:46:43
Ryuzo Sato,Rama V. Ramachandranis the refractive index . of the liquid. Fifty years before Einstein, Fresnel succeeded in giving a plausible ether-based explanation of this. From the point of view of special relativity, however, the result (.) is nothing but the relativistic velocity addition formula!反感 发表于 2025-3-26 00:49:01
Mathematics and Its Applicationsake different instantaneous sections (for example, the . and . axes) and how they have different time axes. Certain lines in spacetime correspond to the history of material particles, and are aptly called “particle worldlines.” They are straight if the particles are free. Extended bodies have “worldGlucocorticoids 发表于 2025-3-26 05:28:15
https://doi.org/10.1007/978-94-011-5858-9sive advance of the perihelion of the planet Mercury, by about 43 seconds (!) of arc per century. Since the advent of modern particle accelerators, however, vast discrepancies with Newton’s laws have been uncovered, whereas the new mechanics consistently gave correct descriptions. (Of course, NewtonDri727 发表于 2025-3-26 09:45:00
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1864-5879 gonal metric (in a little more generality than the old" Dingle formulas "), and one syn thesizing Maxwell‘s theory in tensor form. But the most significant cha978-3-540-10090-4978-3-642-86650-0Series ISSN 1864-5879 Series E-ISSN 1864-5887