Gravity -Time / Gravity - Space and 4D Spacetime

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Gravity -Time / Gravity - Space and 4D Spacetime

#1  Postby socratus » Nov 16, 2020 12:11 pm

Gravity -Time / Gravity - Space  and 4D Spacetime 
1 - There is only one kind of ''time'' and it is gravity-time. There is only one kind of '' space'' and it is gravity- space. We live on/in Earth's gravity-time and gravity-space. For us this gravity-time and gravity-space are absolute and they have different qualities.
2 - Minkowski ( correcting Einstein SRT ) discovered another system of existence so-called '' absolute 4-D spacetime''. This 4D system doesn't have gravity. About this system Minkowski said: ''The views of space and time which I wish to lay before you have sprung from the soil of experimental physics, and therein lies their strength. They are radical. Henceforth, space by itself, and time by itself, are doomed to fade away into mere shadows, and only a kind of union of the two will preserve an independent reality.''
/ Minkowski. Sep 21, 1908./
3 - Earth-gravity reference frame and  Minkowski  non-gravity absolute 4-D  system are two different physical systems and the connections between these two system is unknown until today
 4 - The conceptions "time" and "space" are property of Gravity. Without gravity there isn't "time", there isn't "space". The discussion about "time" and "space" without concept of Gravity is tautology.
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Re: Gravity -Time / Gravity - Space and 4D Spacetime

#2  Postby Challenger007 » Dec 18, 2020 1:50 pm

Gravity and the laws of physics in general in general govern a huge variety of processes on Earth. Animal migration seems to be a common occurrence. But how do animals know they need to move? How do they understand the time when it should be done? This is a very interesting process. And it seems to me that satellite technology and the study of the observational data obtained will help mankind come closer to solving this phenomenon. I read the article ... from-space and got interested. Of course, such knowledge is unlikely to be useful for everyday life, but for satisfying one's own desire for knowledge it is quite useful.
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