Special Relativity and a 4th spacial dimension?

Question

If an observer rotates a four dimensional object, the lengths of the object would change to the observer. If that same observer walks backwards, the lengths of the object will also appear to change from his frame. In fact, if either the observer or the object rotates or moves in any way, it will also appear to the observer that the object's lengths have changed.

This is very similar to the effects of special relativity in our universe(length contraction, lorentz transformations etc.). Perhaps Einstein uncovered more than what he thought. To say that special relativity is just the consequence of a fourth spacial dimension also compliments the balloon analogy of the universe, which shows how the universe expands(through a fourth spatial dimension).

Also, we have time dilation, which suggests that time is indeed the fifth and final dimension, and that time is perpendicular to the spatial dimensions.

What do you think?

Answer 1

The biggest drawback to assertions that there are more spatial dimension which are expansive, like the three we currently experience, is "why don't we perceive this other dimension?"

Some string theory suggests that there are between 9 and 11 more spatial dimension and the reason we do not experience them is that they are too small.

HTH

Charles

Answer 2

Einstein's fourth dimension was time.

You may wish to study quaternions.

Answer 3

I like turtles

Answer 4

a q -

There is nothing to rule out a fourth spatial dimension. However, it's not clear to me that it would act as you describe, since you are assuming that we can perceive only those sections of objects that pass through our familiar 3 dimensions. That is, I think, why you say that it would change in length with different views, rotations, etc, since that would bring different sections into view within our familiar 3 dimensional spacetime universe.

I must take issue with this being similar or related to time dilation or length contraction as described by the tenets of Special Relativity and the Lorentz Transforms. Those effects are the direct result of the validated observation that the speed of light is constant, regardless of the motion of the source or the observer. Since that is a well-documented phenomenon, the equations of special relativity fall out with no need for extra spacial dimensions, slices seen as they pass through our spacetime, etc.

You have raised a potential issue that is interesting, but not backed up by any observations that I am aware of. I also believe it is unrelated to the effects of special relativity, which stand on their own merit without the need for any such assistance.

Answer 5

Yeah, so like, could you give me a drawing of that & stuff?