引力是最早被认识的物理相互作用,它由Newton经典理论和Einstein的广义相对论描述。相对论包括狭义的( SR)和广义的( GR),其中空间和时间是一体化的,而GR也被称为几何动力学。在Newton理论中引力速度是无限大,而在Einstein理论中引力速度是光速。 GR认为引力与电磁力不同,是弯曲时空的纯几何效应。 GR还预言存在引力波,但即使经历了近百年的实验和寻找,它仍然只是物理学家头脑中的想象。本文认为空间、时间是物理学中的独立概念,所谓空时(或时空)在自然界并不存在,没有实在性。所谓空时(或时空)无法测量,故无科学意义。所谓“时间弯曲”更是无意义的不通的表述。在引力理论中,Newton平方反比定律( ISL)非常重要,而且极为精确。 Newton理论中引力首先是力,抓住了事物的本质。很久以前许多著名科学家就知道引力传播速度比光速大很多( vG ≫c ),他们是I. Newton,P. Laplace, R. Lämmel,M. Born,A. Eddington,T. Flandern等；他们普遍认为引力如以有限速度(光速c )传播,绕日运动的行星由于扭矩作用将不稳定。1805年Laplace根据月球运动分析认为引力速度vG ≥7×106 c。人们考虑了不同的引力理论模型,例如把引力当作平坦时空中的力作用,从而研究得出引力速度大于2×1010 c———Flandern根据双星轨道计算得出此值。上述多个结果均与所谓引力波无关。电磁学中也有类似现象,当计算电荷产生的静电场,或天线近区的静态场,结合实验竟发现Coulomb场传播速度可为超光速, vs =(1.01~10) c。由于Coulomb场也是ISL,其结果与引力传播相似。虫洞和曲相推进完全是GR理论的产物,建基于时空一体化和弯曲时空的理念。虽然人人都知道SR断言“不可能有超光速运动”,但GR在实际上却否定了这一说法,表明相对论内部有不自洽性。但这些研究都断言需要有能量为负的奇异物质,证明加强对负能量研究是重要的。本文最后把引力传播、静态Coulomb场传播、量子纠缠态( QES)传播三者作比较,它们都存在超光速现象。虽然我们无法指出造成这些现象的原因,但却能找出现象的规律,并为自然界的奇妙感到惊奇。%The gravity is the oldest known physical interaction,it is described by the Newton’ s classical theory and the Einstein’ s general relativity( GR) . The relativity contains special relativity( SR) and GR, in these theories the space and time are unified concepts and the GR is also called geometrodynamics. The speed of gravity in Newton’ s universal 1aw is infinite,but the gravity propagation speed in Einstein’ s theory is the speed of light. GR explains these features by suggesting that gravitation( unlike electromag-netic forces) is a pure geometric effect of curved spacetime,not a force of nature that propagates. The GR expect the gravitational waves are physical reality,but according to the many experiments and tests in a century this idea exist only in the minds of physists. In our opinion,the space and the time are independent concepts in physics,the so-called spacetime is not exist in nature,i. e. that is not a concept of physical reality. Especially,the spacetime is fundamen-tally untestable and hence scientifically meaningless. And when one spoke about“curved time”,from the semantics of view,it is speak incoherently and faulty wording. In the theories of gravity,the Newton’ s inverse square law( ISL) is of great importance to us. It is a precision law of gravity. In Newton’ s theory the gravity is a force,that is the essence of the gravity’ s character. Many years ago,several famous scientists was already known that the gravity propagation veloc-ity much larger than the speed of light,i. e. vG ≫c . They are I. Newton,P. Laplace,R. Lämmel,M. Born,A. Eddington,T. Flandern,etc. They remarks that if gravity propagated with finite velocity c ,the motion of planets around the Sun would become unstable,due to a torque acting on the planets. Laplace concluded that the speed of gravity is vG≥7 × 106 c by analyzing the motion of Moon in 1805. Now,differ-ent gravity models need to be considered. For example,if gravity is once again taken to be a propagating force of nature in flat spacetime with the propagation speed indicated by observational evidence and exper-iments:not less than 2 × 1010 c . T. Flandern gives this value based on a purely central force of Newtoni-an theory from the observations of the solar system and binary stars. It is impossible to relate these results with the gravitational waves. Such behavior can be found in electromagnetism, when one computes the propagation of the static electric fields generated by an electric charge,or by an antenna operated in the near field region. Experi-ments show that the propagation speed of Coulomb field are vs=(1. 01~10) c . Because the Coulomb’s law is also ISL,these results are consistent with the gravity propagation. The GR resulted in wormholes theory and the warp-drive theory,they are based integration of space and time,then the spacetime is curved. Although everybody know that the SR says “velocities greater than that of light have no possibility of existence”,but the GR have refuted this views actually,there are indications that the contradication is present in the relativity theory. However,these studies conclude that the operation in need of the exotic matters,we must streng then the research works on the negative-energy situation. Finally,we compare the gravity propagation with the Coulomb(static)field propagation and the quan-tum entangle state( QES) propagation,these situations always exist the superluminal behavior. Although it was very not clear to explain the cause of the phenomenon,but we can understand the objective law of them,and express profuse admiration on nature.
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