共查询到18条相似文献,搜索用时 125 毫秒
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真空光速c既是一个具有运动学品性的量,又是一个电磁场理论中具有动力学品性的量.因此狭义相对论中的光速不变原理不但可以给出洛伦兹时空变换,进而给出钟慢、尺缩等运动学观测效应,而且同时也对理论的动力学结构提出了在经典力学中不可能出现的约束.本文设计并详细分析了几个典型的佯谬问题,旨在说明狭义相对论的运动学如何约束其动力学结构.具体来说,运动学的观测效应要求动力学上与其协调的一定是以有限速度传播的场相互作用理论,其传播速度上限即为真空光速,而场量的变换应由洛伦兹时空变换所决定.进一步分析表明,场具有动量等物质属性,是物质存在的一种形式. 相似文献
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1905年,爱因斯坦创立了狭义相对论,从而把牛顿力学中对宏观低速物体的研究推广到高速运动的物体,得到了一套崭新的时空观.动尺收缩是狭义相对论时空观的经典效应,狭义相对论时空观的基础是同时的相对性.因此同时的相对性与动尺收缩效应存在必然的联系. 相似文献
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§4.1尺缩效应和车库佯谬稍微接触过狭义相对论的人都听说过尺缩、钟慢等饶有兴味的效应.当你进一步听到"双生子悖论"和"车库悖论"时,除了觉得更加有趣之外,还会平添许多疑惑和不解.其实,只要思维清晰,利用洛伦兹变换就可把这些效应解释清楚.不过,对于某些问题(特别是"双子悖论"),在听完用洛伦兹变换的 相似文献
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F. Goy 《Foundations of Physics Letters》1997,10(4):329-346
The derivation of the transformations between inertial frames made by Mansouri and Sexl is generalised to three dimensions
for an arbitrary direction of the velocity. Assuming length contraction and time dilation to have their relativistic values,
a set of transformations kinematically equivalent to special relativity is obtained. The “clock hypothesis” allows the derivation
to be extended to accelerated systems. A theory of inertial transformations maintaining absolute simultaneity is shown to
be the only one logically consistent with accelerated movements. Algebraic properties of these transformations are discussed.
Financial support from the Swiss National Science Foundation and the Swiss Academy of Engineering Sciences. 相似文献
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利用狭义相对论对同时性的理解,指出了关于一种长度收缩佯谬解释的不妥之处,并解释了改进后的关于长度收缩佯谬的提法,证明了在不同参照系上的观测者观测所得到的结论相同. 相似文献
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Alan L. Macdonald 《Foundations of Physics Letters》1992,5(5):493-494
There is no indication of time dilation of clocks or of length contraction of rods in Marzke and Wheeler's clock or in Desloge's metrosphere. 相似文献
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E. M. Yahalomi 《Foundations of Physics Letters》1997,10(5):495-501
Time dilation in rotational movement is shown to be a combination of two different phenomena: time dilation of theory of special
relativity and time dilation of theory of general relativity. Two laboratory experiments are suggested to verify this. It
is also shown that the uncertainty principle is covariant in the weak field approximations. 相似文献
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基于狭义相对论的洛伦兹变换和同时的相对性,本文给出了一个推导长度收缩和纵向相对论多普勒效应的新方法。该方法可更直观理解在两个惯性系中观测一个纵向光波的波长与观测沿纵向静止于某个系中杆的长度的本质区别。 相似文献
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Traditional clock synchronisation on a rotating platform is shown to be incompatible with the experimentally established transformation
of time. The latter transformation leads directly to solve this problem through noninvariant one-way speed of light. The conventionality
of some features of relativity theory allows full compatibility with existing experimental evidence. 相似文献
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Tim Budden 《Foundations of Physics Letters》1998,11(4):343-357
In this note I briefly discuss some aspects of relative geometric simultaneity in special relativity. After saying a few words about the status and nature of Minkowski spacetime in special relativity, I recall a uniqueness result due to David Malament concerning simultaneity relative to an inertial worldline and an extension of it due to Mark Hogarth and I prove an extension of it for simultaneity relative to an inertial frame in time-oriented spacetimes. Then I point out that the uniqueness results do not generalise to definitions of simultaneity relative to the rotating disk. Finally, I evaluate some recent claims of Selleri in the light of the results. Whilst some of his claims are supported by the approach taken here, the conclusion he draws from these claims, that special relativity harbours a discontinuity and so stands in need of replacement, does not follow and is rejected. 相似文献
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