extradimension Posted January 14, 2020 Posted January 14, 2020 Would physics break? It would allow separate frames of reference to scale ..we know it is doing this because the speed of light is the same in time dilation volumes. Gravitational waves fluctuate the scale of reality as they pass. It could make cosmic voids expand and black holes contract. Quote Four LARGE spatial dimensions means anything that spreads out 'spherically' will follow an inverse cube law, not an inverse square law. This is interesting because I think it explains how a black hole is started. A giant star collapses in on itself into the 4th dimension using the inverse cube law. You would need the force of a collapsing star to interact with the fourth dimension. What does the information paradox say about matter being sent to a 4th dimension? If a black hole is partially 4D ..that would be hard evidence that it is there. Do cosmic voids have something to do with 4D? It seems when a volume doesn't have mass ..the 4d spatial spacetime is collapsing in on itself to cause voids to expand? Is gravity considered weak because mass from 3D objects that we can interact with and see is barely anything to a 4D spatial spacetime fabric? A black hole would be 4D mass and spacetime would do the opposite of cosmic voids. Is Dark Matter, 4D mass? If Dark Matter is in the 4th dimension ..how was it distributed? Were supermassive black holes involved? Were galaxy volumes predetermined by 4D mass? I think gravitational waves occur in the 4th dimension, so that means there are two ways for us to interact with it. The force of a collapsing star and events that produce gravitational waves. Gravitational waves warp spacetime in the same way time dilation happens. Would this extra dimension give us a different view of the big bang? Quote The gravitational force of a point mass drops off as 1/r2 . As Sean stated above, this becomes 1/r{2+N} where N is the number of extra dimensions you are adding to a theory. In layman's terms this is because there are now more dimensions for the force to operate in, so the amount of force is more "spread out" for a given distance away. The gravitational force originates from the extra dimension ..it was already "spread out" before the test. Quote Doesn't matter, we already know that since the inverse-square law holds for masses we can test here (down to ~1mm) then there can't be another large dimension similar to ours holding other matter influencing us. No, it doesn't say that. Inverse-square is for 3D masses. 4D mass is dark matter ..it isn't influencing us except bending spacetime.
Conjurer Posted January 14, 2020 Posted January 14, 2020 (edited) The only relation to extra spatial dimensions and any known laws of physics that is well known to possibly exist is related to the amount of dark energy of the universe. Then that would depend on if it is an open or closed spatial dimension. An extra, large closed spatial dimension would reduce the amount of dark energy, and a universe with an extra, large open spatial dimension would have more dark energy. Then recent findings of the increase in acceleration of the expansion of the universe would imply that there actually is an extra large open spatial dimension. That is assuming that larger dimensions work in the same way we would expect lower dimensions to interact if they interacted with each other the same way the known dimensions do. Gravitational waves would travel through the 5th dimension, because the 4th dimension is time. Edited January 14, 2020 by Conjurer
Ghideon Posted January 14, 2020 Posted January 14, 2020 3 hours ago, extradimension said: Do cosmic voids have something to do with 4D? No. Mainstream models states that laws of physics are the same. The voids between galaxies and space inside galaxies have the same number of dimensions.
Strange Posted January 14, 2020 Posted January 14, 2020 6 hours ago, extradimension said: I think gravitational waves occur in the 4th dimension, so that means there are two ways for us to interact with it. The force of a collapsing star and events that produce gravitational waves. Gravitational waves warp spacetime in the same way time dilation happens. Would this extra dimension give us a different view of the big bang? ! Moderator Note The rules of the Speculations forum require you to provide support for your claims. Saying things like “I think” is not enough Unless you can produce a mathematical model of 4D spacetime or some definite evidence (which would appear to require a mathematical model) then this thread will be closed.
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