Invariance of light speed and nonconservation of simultaneity of separate events in prerelativistic physics andvice versa in special relativity

Cavalleri, G.; Bernasconi, Claudia

doi:10.1007/bf02726163

Cited by 18 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…If the special theory of relativity prefers the first definition, i.e., sets ε equal to 1/2, it does so on the ground that this definition leads to simpler relations". On the possibility to choose freely ε according to (14) agreed, among others, Grünbaum [11], Jammer [12], Mansouri and Sexl [13], Sjödin [14], Cavalleri [15], Ungar [16]. Clearly, different values of ε correspond to different values of the one-way speed of light.…”

Section: Noninvariant Speed Of Lightmentioning

confidence: 98%

See 1 more Smart Citation

Time on a rotating platform

Goy

Selleri

1997

Found Phys Lett

View full text Add to dashboard Cite

show abstract

Section: Noninvariant Speed Of Lightmentioning

confidence: 98%

“…the last step being necessary, because the two-way velocity of light has been measured with great precision and always found to be c. From (14), (15) and (16) one easily gets…”

Section: Noninvariant Speed Of Lightmentioning

confidence: 99%

Time on a rotating platform

Goy

Selleri

1997

Found Phys Lett

View full text Add to dashboard Cite

show abstract

“…Recently, his thesis was published [150] (see also [127,128,[151][152][153]). Tang herlini was the first to propose using superluminal sig nals for instantaneous synchronization of spaced clocks located in different inertial reference frames, which ensures the absolute simultaneity [123,128,131,[150][151][152][153][154]. It should be noted that Tangherlini himself did not consider the physical nature of these superluminal signals.…”

Section: Tachyon Period: Attempts To Instantiate Superluminal Motionmentioning

confidence: 99%

Superluminal motion (review)

Malykin

Romanets

2012

Opt. Spectrosc.

View full text Add to dashboard Cite

Prior to the development of Special Relativity, no restrictions were imposed on the velocity of the motion of particles and material bodies, as well as on energy transfer and signal propagation. At the end of the 19th century and the beginning of the 20th century, it was shown that a charge that moves at a velocity faster than the speed of light in an optical medium, in particular, in vacuum, gives rise to impact radiation, which later was termed the Vavilov-Cherenkov radiation. Shortly after the development of Special Relativity, some researchers considered the possibility of superluminal motion. In 1923, the Soviet physicist L.Ya. Strum sug gested the existence of tachyons, which, however, have not been discovered yet. Superluminal motions can occur only for images, e.g., for so called "light spots," which were considered in 1972 by V.L. Ginzburg and B.M. Bolotovskii. These spots can move with a superluminal phase velocity but are incapable of transferring energy and information. Nevertheless, these light spots may induce quite real generation of microwave radi ation in closed waveguides and create the Vavilov-Cherenkov radiation in vacuum. In this work, we consider various paradoxes, illusions, and artifacts associated with superluminal motion.

show abstract

“…Based on invariance requirements, a similar equation for a point source was derived by Torgny Sjödin (private communication). Equation(37) resembles the static field equation proposed by Einstein in his precursor VSLgravitation theory ([18], 38, 456, Eq. (3b)): c∆c − 1 2 (∇c) 2 = kc 2 ρ, with c the velocity of light, k the universal gravitational constant, and ρ mass density (see also[21]).…”

mentioning

confidence: 82%

“…In the Lorentz-Poincaré interpretation the latter consists of, i) physical longitudinal Lorentz contraction of a 'material rod' by a factor γ(v) −1 , ii) physical Lorentz time dilation of a moving 'clock' by a factor γ(v), both with velocity v relative to the field Φ. The composition of both effects -gravitational and kinematic-and standard synchronization or Einstein synchronization [34][35][36][37] into an observer transformation between momentary locally coincident observers S ′ and S 0 , leads directly to the gravitationally modified Lorentz transformation, the GMLT of S 0 to S ′ :…”

Section: Space and Time Gmltmentioning

confidence: 99%

A Modified Lorentz-Transformation–Based Gravity Model Confirming Basic GRT Experiments

Broekaert

2005

Found Phys

View full text Add to dashboard Cite

Implementing Poincaré's geometric conventionalism a scalar Lorentz-covariant gravity model is obtained based on gravitationally modified Lorentz transformations (or GMLT). The modification essentially consists of an appropriate space-time and momentum-energy scaling ("normalization") relative to a nondynamical flat background geometry according to an isotropic, nonsingular gravitational affecting function Φ(r). Elimination of the gravitationally unaffected S 0 perspective by local composition of space-time GMLT recovers the local Minkowskian metric and thus preserves the invariance of the locally observed velocity of light. The associated energy-momentum GMLT provides a covariant Hamiltonian description for test particles and photons which, in a static gravitational field configuration, endorses the four 'basic' experiments for testing General Relativity Theory: gravitational i) deflection of light, ii) precession of perihelia, iii) delay of radar echo, iv) shift of spectral lines. The model recovers the Lagrangian of the Lorentz-Poincaré gravity model by Torgny Sjödin and integrates elements of the precursor gravitational theories, with spatially Variable Speed of Light (VSL) by Einstein and Abraham, and gravitationally variable mass by Nordström.

show abstract

Invariance of light speed and nonconservation of simultaneity of separate events in prerelativistic physics andvice versa in special relativity

Cited by 18 publications

References 9 publications

Time on a rotating platform

Time on a rotating platform

Superluminal motion (review)

A Modified Lorentz-Transformation–Based Gravity Model Confirming Basic GRT Experiments

Contact Info

Product

Resources

About