Multi-dimensional 'zones' in space?

Question

stephen hawking, in one of his books, said that there are some 'zones' in the universe where space is multi-dimensional - more than 3 dimension, x,y,z....

i'm wondering.....how can he say this?

where is the proof?

if these 'zones' exist, do they exist beside other 'zones' of less/more dimensions?

if so, how do these 'zones' abut against each other - say 5dim beside 3dim zones?

very strange concept.....

george

Answer 1

If the 4th spatial dimension exists, it wouldn't be in a particular "zone" in our Universe. It would be everywhere, but beyond our grasp or perception.

If a 4D object or creature were to intersect our 3D plane, we would only see a 3D "slice" of it, changing it's shape and size as it travels through our plane, much like you can only see a 2D shape/outline/image of a 3D object on a 2D surface (a photo, for example). 4D objects leave a 3D shadow and produce a 3D projection of themselves. Peculiar stuff, isn't it?

Answer 2

hes a guy in a wheelchair what does he know

Answer 3

Well, I personally do not believe in any extra dimensions except the 4th dimension (time), but if extra dimensions do exist, it would only be logical for them to exist all throughout space, not just certain places.

Empty space is almost as uniform as it gets-the concentration of CMB photons in space are almost perfectly uniform, the temperature of space and the CMB is identical to the 4th decimal place everywhere you go, so it just makes sense for the number of dimensions to be uniform. In other words, if we don't ever find them here, we probably won't find them anywhere.

Besides, if the extra dimensions did exist, they would probably only be apparent on extremely small distances, considereing that most other theories that incorporate extra dimensions mathematically predict this. It'd be like if point A was here and Point B is somewhere else. In our 3D world, the fastest way from A to B is a straight line, but if hidden dimensions exist, there may be a shorter way. However, we might only be able to take advantage of the shorter path if we were around the planck size. (real small)

Answer 4

as for as i know,the 4th dimension,namely,time comes from Einstein's theory of relativity,and it is like a eyeopener for the scientists. So as we can have four dimension why we can't have 4,5 or 6,I think this is the basic for these theories. As for proof,I don't know,and i don't think they have some real ones.

Answer 5

There are only 3 spatial dimensions known in our universe and about 7 non-spatial dimensions. The only other dimension that makes sense to humans without Einstein's brain power other than the 3 spatial dimensions, is the 4th dimension or in other words, space-time. If the 1st dimension is length, the 2nd is length x width, the 3rd is length x width x height then the 4th dimension is naturally length x width x height x time (the amount of time an object takes). Although we live in 3-D, the surface of the Earth is actually 2-D as we measure in longitude and latitude. Both Einstein and Hawking proposed that space is not just space between any objects but actually a 4th dimensional entity called space-time.

Space-time is the combining of space into time to form the space time continuum.

Although you might not know it, we work beside 2-D  and 3-D concepts all  the time whenever we watch a flat screen transformed into 3-D effects with special glasses at the theaters or even do geometry at home. Different dimensions work along each other all the time in perfect unity, it's just natural.

Dimensions are just terms explaining how and what things are; they don't affect the way we live or changes anything around us. It;s just weird mathematical formulas and equations.