Anirudh Aswal

We live in a 3 dimensional world, where everything has length breadth and height. But what if we live in a 2D' world? Every thing will be smashed down to a single plane surface. And what that world would look like? This is what explained in a novel "Flatland" by Edwin Abbott in 1800. But what is a dimension anyway? For us dimension is a direction, which we can picture as a line. For our direction to be dimension, it has to be at right angle to all other dimension. so 1D is a line, while a 2D is two perpendicular line. (a flat surface) Eg. when we stretch a line from its ends perpendicular to the line, We get a 2D square. Similarly a 3D figure adds a third perpendicular. consider the same square. adding a third perpendicular to each ends give us a cube. So what will be a 4 dimensional figure? A five? 10?

Thanx everyone for considering my question... i know everything u said but i never put them together, well this cant be true is the conclusion

While i was working on a model of space I came up with a new(maybe) Idea that, If Black holes are our Universe.. Let me Explain. Lets think of our universe as somewhere inside a Black hole. our "Big Bang" was an explosion of a huge star(which ended up as the black hole i am talking about). The Black hole keeps on Engulfing stuff getting bigger adding more stuff to our universe.. which might also be the cause of the expansion of our universe.. while i am working on this .. Can this idea be turned into a theory... Also if this could be considered we might change the way we think of origin of Universe as there is already a bigger Universe outside our's ... A parallel universe