4th Dimension

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4th Dimension

There are three conventional spatial dimensions: length (or depth), width, and height, often expressed as x, y and z. x and y axes appear on a plane Cartesian graph and z is found in functions such as a "z-buffer" in computer graphics, for processing "depth" in imagery. The fourth dimension is often identified with time, and as such is used to explain space-time in theories of special relativity and general relativity. When a reference is used to four-dimensional co-ordinates, it is likely that what is referred to is the three spatial dimensions plus a time-line.

A Portal is a gateway between the Universe in which we exist and a parallel Universe which we describe as existing in the 4th Dimension.