Blog Ekkehard Friebe

By Prof. Franco Selleri 
Dipartimento di Fisica, Università di Bari INFN, Sezione di Bari 
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This book reviews the results obtained in recent years by the author in relativistic physics. The recently increased conviction about the conventional definition of relativistic simultaneity has opened the doors to new ideas, in spite of the fact that research has shown that simultaneity in the physical reality exists and is not at all conventional. If the coefficient of the space variable x in the Lorentz, or other, transformation of time (we call it e1) had a conventional nature it should be possible to modify it without touching the empirical predictions of the theory.

Given that Einstein’s principle of relativity leads necessarily to the Lorentz transformations, and thus also to a fixed value of e1, such a modification would imply a reformulation of the relativistic idea itself. With respect to the idealized initial picture, the concrete development of research has produced some exciting novelties. Several phenomena, in particular those taking place on accelerating systems (Sagnac effect, and all that) converge in a strong indication of the value e1 = 0. This implies absolute simultaneity and a new type of space and time transformations, which we call "inertial". We give six proofs of absolute simultaneity, which are essentially independent of one another. In order to make their identification easy, the six chapters in which these proofs are given have the equality e1 = 0 already in the title. The cosmological consequences of the new structure of space and time go against the big bang model. After our results relativism, although weakened, is not dead, but survives in milder forms. 

Index: 
  1. Einstein positivist/realist 
  2. Relativistic paradoxes 
  3. Relativism and the nature of energy 
  4. Einstein’s relativistic ether 
  5. Simultaneity, the key idea?
  6. The basic empirical evidence 
  7. The new transformations 
  8. Synchronization independence 
  9. The Sagnac effect
10. The rotating platform
11. Linear accelerations
12. Overcoming the block universe
13. The aberration of starlight
14. The differential retardation of clocks
15. The Lorentz ether
16. The cosmological question
17. Superluminal propagations
18. Weak relativity
Bibliography 

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