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Four-force
About: Four-force is a research topic. Over the lifetime, 3459 publications have been published within this topic receiving 87308 citations.
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TL;DR: A singularity-free solution for a static charged fluid sphere in general relativity was obtained in this article, where the solution satisfies physical conditions inside the sphere and satisfies physical properties inside the fluid sphere.
Abstract: A singularity-free solution was obtained for a static charged fluid sphere in general relativity The solution satisfies physical conditions inside the sphere
226 citations
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223 citations
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01 Jan 1984
TL;DR: In this paper, it was shown that it is not reasonable to expect that the principle of relativity can be extended to non-inertial frames, i.e., there should be no way to determine by an experiment which of two frames of reference is in motion relative to the other.
Abstract: THE WORD “SPECIAL” IN “SPECIAL THEORY OF RELATIVITY” means that the theory is restricted to those frames of reference for which the law of inertia holds, that is, inertial frames of reference.* Einstein sometimes referred to them as Galilean frames of reference. At first glance, it does not seem reasonable to expect that the principle of relativity can be extended to non-inertial frames. The reasons are fairly obvious. The principle of relativity that we have been using states that the laws of physics have the same form in all frames of reference to which the principle applies. In other words there should be no way to determine by an experiment which of two frames of reference is in motion relative to the other.
222 citations