Dimension Definition and 910 Threads

i read a book on quantium theory, it states that a vector of x = x,y,z. When i think about 3 dimensional space, we cannot see that, is that correct?

I am hoping someone can help me to develop a working definition for the term "dimension". In the past I was taught that there is the first dimension which is a single point, the second dimension is defined as this single point being extended in such a way that a second dimensional object would...

So my question is (and this is aimed at cmdrsponge so please reply after he has thank you) What is the fourth dimension? Where is the Fourth dimension? Are the Fourth dimensional aliens going to hunt me down and kill me for asking to many questions?

a theory for a FIFTH dimension... All this talk about dimensions I am sure has bored a number of you, although here is another theory! (If it has been thought of before, I apologise!) Bearing in mind 'time' is established as the 4th dimension, it occurred to me that there must in turn be a...

So we start with the singularity having lots and lots of mass in it. Now this is too much mass so it pops open into the 1st dimension so just a lot of mass covering a line. Since there is no concept of time that means all this mass covering the line exists over and over again making and...

What generalizations can be made concerning fractals of nonzero rational dimensions M/N (where M and N are nonzero integers)? How does a fractal of non-integral dimension F compare geometrically to a fractal of dimension GF, where G is a nonzero integer?

I was wondering what mass means in a 2 dimensional world...

I would like to start off by introducing myself, my name is Jonathan Ploegman from Long Island, New York. I am 18 years old and I am new to the physics world, however I am very interested and eager to learn all that I can. I was wondering what life in the "fourth" dimension would be life. I...

I came up with an idea more than a year ago, but I've yet to take a physics course, still in high school, but please bear with me. Take the Kaluza-Klein approach that light originates from the 5th spatial dimension, at the nearly unreachable Planck length. Now, light is supposedly a vibration...

I have been able to visuallize what a tesseract and its propperties look like. I then applied the same principal to a tesseract and came up with a hyper-tesseract with phase properties (the ability to access other planes of existence). Is this a possible model for mathematical explanation of...