This section is addressed at specialists in General Relativity. It discusses how it is possible to travel in time, specifically to the past, without complex models from an original point of view. It uses a simple model of rotating perfect fluid without pressure.
First, it is assumed that the Gravitational field created by the fluid is negligible, which implies flat space-time. The novelty is that in this space-time, closed time-like curves are not created, nor huge amounts of matter that curves space-time are needed, nor it resorts to exotic matter or negative energy to travel to the past. Instead of that, the relativistic equations of motion of the fluid are solved analytically, which allows to discuss the results.
This is possible due to the Principle of the Equivalence of Gravitation and Inertia postulated by Einstein in the General Relativity. As you can guess it is easier to handle inertia appearing with the accelerated motion than gravity, although the effects in both cases have to be locally equivalent.
Finally we consider the case when the Gravitational field of the fluid is important and therefore gravity is present.
To discuss the ideas presented here, the results, the hypothesis, the deductive method or any other aspect from a technical point of view you have the TECHNICAL COMMENTS section.
Of course, the results obtained are entirely theoretical. They should be subject to experimental tests. For this, I encourage readers to make contributions in the same way in the RELATED PAPERS section. Also, I suggest the generalization for the case of a perfect fluid with pressure and a fluid of accelerated charged particles in an electromagnetic field.
In these sections, you can upload text files to facilitate communication.
Nothing more, I invite you to sit back and take the trip that could be the most amazing of your life. I hope you surprise yourself. Thank you very much for your attention.
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