Extra-Dimensions Explain the Unexplainable
We live in a world with three spatial dimensions (length, width, height) and one dimension of time. The concept of extra dimensions is not fantasy but science. For string theory to work, there have to be 10 or 11 dimensions. One theory is those dimensions are so small that they are impossible for us to perceive or access. But there is an alternate theory by physicists Lisa Randall and Raman Sundrum that we can't access them because our entire universe is "stuck" on a three-dimensional membrane floating in higher-dimensional space. If that is the case, some of those dimensions are large, even infinite. In simple terms, a dimension is an independent direction. That sounds trivial at first until you realize the more dimensions you have access to, the more freedom you have, and the more things are possible. It's difficult, if not impossible, to conceptualize what more dimensions would look like. But we can get an idea of how big a difference just one dimension makes by su...