Higher Dimensions

Your reference and discussion zone for everything about higher-dimensional geometry.

The universe that we live in has only three spatial dimensions. We are limited to length, width, and height, and we can only travel along three perpendicular paths. This page attempts to explain the properties of a hypothetical universe with a spatial fourth dimension. While people generally call time the "fourth" dimension in the universe we live in, time will be the "fifth" dimension in my hypothetical universe.

Many fascinating possibilities exist when a spatial fourth dimension is present. Several types of wheels are possible, very complex machines can be built, and many more shapes are possible. Objects can pass by each other more easily, but they are harder to break into multiple pieces. Energy reduces much faster with distance than in the third dimension, so both light and sound are weaker. Many more things can be compacted into a small space, but it's much easier to get lost.


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