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Is time its own dimension or is it a constant that remains through all dimensions? Also, are there multiple dimensions of time, and how do we know the answers to these questions?
Is time its own dimension or is it a constant that remains through all dimensions? Also, are there multiple dimensions of time, and how do we know the answers to these questions?
You could both start here:I do not think its possible for time to be its on dimension. Time would have to exist on all dimensions, because without it, there would be no differentiation between the dimensions.
Maybe it works differently in different dimensions though?
We observe the universe, perform experiments, and make new models and theories. Basically ask, "what are the consequences if X is true" and then see if your observations and experiments support this over other possibilities. If there were multiple dimensions of time then there would be some serious consequences that would could observe. But we don't observe these things. All our observations and experiments support the idea that time is a single dimension, just one out of the four total dimensions making up spacetime.and how do we know the answers to these questions?
To the best of our knowlege, time is a single dimension. Note that I'm using 'dimension' to refer to a particular axis of a coordinate system. I don't mean 'dimension' in the sense of there being alternate dimensions, which might be better described as alternate or parallel universes.I do not think its possible for time to be its on dimension. Time would have to exist on all dimensions, because without it, there would be no differentiation between the dimensions.
Undoubtedly Time is not a dimension but like gravity Time is the only thing that can move across dimensionsIs time its own dimension or is it a constant that remains through all dimensions? Also, are there multiple dimensions of time, and how do we know the answers to these questions?
I am always surprised that people accept so quickly that time is a dimension. It should not be forgotten that only with ##it## will we get a number that behaves like a spatial dimension in many ways. However, without the ##i## multiplier, it is impossible to include time as the fourth dimension besides the three spatial dimensions. The ##i## itself has a lot of unique features.To the best of our knowledge, time is a single dimension. Note that I'm using 'dimension' to refer to a particular axis of a coordinate system. I don't mean 'dimension' in the sense of there being alternate dimensions, which might be better described as alternate or parallel universes.
This is nonsense. Time is treated as a dimension in physics, and your statement about moving across dimensions is vague and probably meaningless. Since you appear to be a new member, please note that PF does not allow personal theories or ideas that fall outside of mainstream science. You can find a list of the rules under the 'INFO' dropdown menu at the top of the page.Undoubtedly Time is not a dimension but like gravity Time is the only thing that can move across dimensions
Interestingly, the article on the physical concept of time in Encyclopedia Britannica begins with time as a continuum with no spatial dimension.This is nonsense. Time is treated as a dimension in physics, and your statement about moving across dimensions is vague and probably meaningless. Since you appear to be a new member, please note that PF does not allow personal theories or ideas that fall outside of mainstream science. You can find a list of the rules under the 'INFO' dropdown menu at the top of the page.
Of course. Time is a non-spatial dimension, as it has to be.Interestingly, the article on the physical concept of time in Encyclopedia Britannica begins with time as a continuum with no spatial dimension.
That's not quite right; not only is it possible, but ##it## is one of the first things you unlearn as you move from special relativity to general relativity. There's a short section in MTW entitled "Farewell to ##ict##" in which the authors explain why our "old friend ##ict##.... must be put to the sword".However, without the ##it## multiplier, it is impossible to include time as the fourth dimension besides the three spatial dimensions.
I do not think its possible for time to be its on dimension.
Time would have to exist on all dimensions
Undoubtedly Time is not a dimension but like gravity Time is the only thing that can move across dimensions
The very first sentence in the wiki article that @PeroK cited in post #3 says:I am always surprised that people accept so quickly that time is a dimension.
Some sources distinguish the three spatial dimensions, the x, y, and z of Euclidean space, and the temporal dimension, time.n physics, spacetime is any mathematical model that fuses the three dimensions of space and the concept of time into a single four-dimensional continuum.
Dimensions do not have to be spatial. There are many examples of dimensions that are neither spatial nor temporal.I am always surprised that people accept so quickly that time is a dimension. It should not be forgotten that only with ##it## will we get a number that behaves like a spatial dimension in many ways.
Mathematics and physical reality should not be combined. Mathematics knows Hilbert space of infinite dimension, but no one thinks that the physical space itself would be an endless dimension. Of course, I also know, for example, that general theory of relativity uses a space concept in which physical spatial and temporal relationships only appear as spatial relationships. However, time in these geometries also plays a unique role.Dimensions do not have to be spatial. There are many examples of dimensions that are neither spatial nor temporal.
By that argument "dimension" is a mathematical concept, with a mathematical definition. Space and a 3D geometry are related by a mathematical relationship. When we say space is 3D, we mean space is modelled by a 3D mathematical space. And when we say spacetime is 4D we mean that spacetime is modelled by a 4D mathematical space.Mathematics and physical reality should not be combined.
The dimension itself is an entirely geometric concept.