Question

how many dimension is posible is I know 2D,3D,4D there is any more?

Answer 1

Time is the commonest fourth dimension.

Answer 2

http://phys.org/news/2014-12-universe-dimensions.html

Answer 3

is this true @Irishboy123

Answer 4

my only personal experience is if x,y,z,& t.

but it certainly sounds good!!

Answer 5

http://www.tenthdimension.com/medialinks.php

Answer 6

i want to know whether it is valid?
i can take it as a topic then

Answer 7

I know 4D as x,y,z,t.

Answer 8

There are possibly infinitely many, but we can only perceive 4D and up with math... and just barely "see" them. I recommend you watch this video on you tube :

https://www.youtube.com/watch?v=eGguwYPC32I

Answer 9

The space in which we move around in is just one example of a vector space, but there are many other spaces in which we use the exact same framework to describe it with higher than 3 dimensions.

It's pretty restrictive to try to force yourself to visualize dimensions in a spatial sense. For instance, we can have a vector where each dimension essentially represents the probability you're in your room, in the kitchen, in the bathroom, in the livingroom, or outside of the house. That's already 5 dimensions! Since you have to be somewhere with 100% probability, the length of a vector where each dimension is talking about probability of being somewhere specific must be equal to 1. Of course it makes sense that you could easily have a pretty large dimensional vector here if you want to add more places you'd like to be, like hiding in the closet or maybe in the back yard or at school, or whatever to be more specific. The same math you use for this is the same math we use for spatial vectors in 3D space.

Actually there's something neat about this too, you could represent where you stand somewhere on a line between where you live and where your grandma lives. Then you make a dimension at every point between there and here representing the probability you're at that location. But wait a sec... There are infinitely many points! So it turns out you have an infinite dimensional vector, which luckily we can represent with a function... And this is sort of like a mini intro to how quantum mechanics is done.

Also, an a completely unrelated note, there are these things called fractals, and they're called that because they have a fractional number of dimensions and it's actually pretty interesting how you can fairly easily derive the dimension of fractals by how they scale. I believe this is called it's Hausdorff dimension.