Dimension Definition and 881 Threads

Can someone explain what the 4th Dimension is?

Does this concept is connected with a pure geometry (of space)?. Thus each dimension is perpendicular at all another. It is simple for presenting graphically up to three dimensions: point, line, square, cube and ….. Further it is much more difficult. What a physical sense of...

4th DIMENSION EQUATIONS! CALCULUS HELP I have to explain the 4th dimension and hyper-space using for my High School calculus AP final project. IF someone can give me some insight or some equations to help me see and learn more about the 4th dimension it will be greatly appreciated. Some...

Ok, how can we see a point (0 dimensions) or a line (1 dimension) without it being 2 dimensional as well, and how can something exist within a 2 dimensional plain if dimensionality doesn’t explain something to exist. How can 3 dimensions exist if dimensionality must be infinite at any point in...

Hi, i need help with the following: One swimmer in a relay race has a 0.50-s lead and is swimming at a constant speed of 4.0 m/s. He has 50 m to swim before reaching the end of the pool. A second swimmer moves in the same direction as the leader. What constant speed must the second swimmer...

A New Theory of Time -------------------------------------------------------------------------------- My Theory is based on the notation that the reason we experince time in a smooth motion is because we are also traveling in a smooth motion. if we took the centre of our galaxy as the...

Time is just a way of measuring the velocity of the motion of an object through the 3 real dimensions. In order to go into the future you would have to stop your particles for the desired amount of time (basically cryogenics). Your particles weren't present to have their effect on the future so...

could someone told me an experiment that ı can find the dimensions of the electric charge in therms of m, kg, sec the answer is kg^(1/2)*m^(3/2)/sn it can be found by assuming the epsilon zero is dimensionless please say me an experiment that i can check it :confused: :confused:

Linear Algebra -- Dimension, Basis Had a horrible lecture this morning and the following was presented at a lightning quick pace. I'm not sure whether I messed up my notes in my haste to get them all down or if I'm completely not understanding something. I have two sets of vectors: W =...

Did Einstein meant by space-time continuous that time is just another dimension, like the other 3? If so, why are we experiencing this one that differently? (Should this have gone in the phylosophy section?)

I have printed a notes about differential geometry, and it says: -A Coo differentiable structure on a locally Euclidean, Hausdorff topological space M of dimension m is a collection of coordinate systems F Then it specifies the conditions that F must satisfy, but I'm a little lazy and won't...

i've been reading Brian Greene's latest book and have enjoyed his excellent analogies and metaphors for understanding quantum mechanics (among other things). IANAP, but one thing that comes to mind as a theory is that the concept of particles that are non-local having an effect on each other...

Can someone please explain to me or direct me to a website about the theory that there are 4 spatial dimensions, and that gravitons exist in the 4th one. I am now aware of this theory, and that this could explain why gravity is so weak. I find this really interesting, and would appreciate any...

All Theorists, I have been searching for the complete understanding of "dimension" since the time when I fell down the stairs as a baby. There never was any difficulty when I walk or crawl around in two dimensions but for three dimensions, there were a lot of pains (I found out the hard way)...

Hello all- This is something that has been on my mind ever since I first learned about the fourth dimension and beyond, sometime back in fifth grade. This is simply one of those things that I never really 'got'. What is a dimension? How does an n-th dimension (where n>3) exist? What...

What is done in the following might be considered as “not mathematical.” Nevertheless we must be allowed to use crazy ideas if only for the sake of exploring the uncharted domains of human mathematical logic. This is not to prove again the famous math problem called Fermat’s Last Theorem. The...

I want some proof there is TIME as a dimension or anything having to do with science. Time is something we humans invented to organize society and ourselves.

has anybody done any thinking on the properties of a universe with four "normal" spatial dimensions? I've done a bit and some interesting properties have surfaced. I've discovered that rivers don't need bridges, sponges and screens can pass through each other, and there are several types of...

IN a Flash it Can all be explained? Currently we see unification only in supersymmetry? If this is the case how would dimension speak to this? I have been thinking about Gravity a lot, and the strength and weakness seem to me, to be only a matter of dimensional significance? What is the...

how can a dimension be "small" ? Sorry, I'm not much of a physicist. I have read that extra dimensions may be "small" and curled up. Since height, width, and depth appear to be limitless, I am having a hard time understanding what small means when applied to dimensions. I suspect it has...

hey, anyone out there care to offer their thoughts on the fourth dimension? as in what would it be, all I have is that a fourth dimensional object would seem like a 3 dimensional object moving down and then disapearing?

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...