Parman - Activate OP_GFY now!! on Nostr: New insight to me while thinking about theoretical #physics ... Firstly, what many ...
New insight to me while thinking about theoretical #physics ...
Firstly, what many physics enthusiasts already know ...
There is a boundary around a point in space that beyond which, it is impossible for any information to reach the central point.
The "cosmic boundary" I think it's called. This is because space is expanding in such a way that every point is moving away from every other point (like ink dots on an expanding balloon all move away from each other). Because of this, cumulatively over enough distance, two points in space are moving away from each other faster than the speed of light (this doesn't break the speed of light limit btw, because the limit is on masses (and information) moving THROUGH space, not a limit of universe expansion).
So as the universe keeps expanding, more and more points in space can never communicate with other points, eventually everything in the universe become isolated and alone.
This is my new idea/concept (idk if it's well described, probably already is) ...
Say there are two giant masses moving away from each other, and then after some time they are too far apart, such that light/information from one can't ever travel to the other because the universe space between is inflating too fast. What happens to the gravitational force between them? The natural thought might be to ask if the force disappears. But force itself isn't information that travels and limited by the speed of light. It's the CHANGE to the gravitational force that is information limited by the speed of light. My thought is that the mass will perceive the other as a static mass. Eg if it implodes and radiates its mass to zero, none of that change will be "felt" and the original gravitational force remains.
More interestingly, what if the object is moving, does its gravitational field just stop moving once a cosmic barrier exists? Well, no, the "perceived" speed of the other object actually approaches zero naturally because light/gravitational_waves have further and further to travel as the cosmic boundary conditions come closer to existence.
I'm not a theoretical physicist, yet, so please correct any errors in my thinking.
Firstly, what many physics enthusiasts already know ...
There is a boundary around a point in space that beyond which, it is impossible for any information to reach the central point.
The "cosmic boundary" I think it's called. This is because space is expanding in such a way that every point is moving away from every other point (like ink dots on an expanding balloon all move away from each other). Because of this, cumulatively over enough distance, two points in space are moving away from each other faster than the speed of light (this doesn't break the speed of light limit btw, because the limit is on masses (and information) moving THROUGH space, not a limit of universe expansion).
So as the universe keeps expanding, more and more points in space can never communicate with other points, eventually everything in the universe become isolated and alone.
This is my new idea/concept (idk if it's well described, probably already is) ...
Say there are two giant masses moving away from each other, and then after some time they are too far apart, such that light/information from one can't ever travel to the other because the universe space between is inflating too fast. What happens to the gravitational force between them? The natural thought might be to ask if the force disappears. But force itself isn't information that travels and limited by the speed of light. It's the CHANGE to the gravitational force that is information limited by the speed of light. My thought is that the mass will perceive the other as a static mass. Eg if it implodes and radiates its mass to zero, none of that change will be "felt" and the original gravitational force remains.
More interestingly, what if the object is moving, does its gravitational field just stop moving once a cosmic barrier exists? Well, no, the "perceived" speed of the other object actually approaches zero naturally because light/gravitational_waves have further and further to travel as the cosmic boundary conditions come closer to existence.
I'm not a theoretical physicist, yet, so please correct any errors in my thinking.