Friday, August 17, 2007


Why 10 dimensions?

Although the human mind comprehends the universe with three spatial dimensions, some theories in physics, including string theory, include the idea that there are additional spatial dimensions. Such theories suggest that there may be a specific number of spatial dimensions such as 10. The question, "Why 10 dimensions?" arises from these theories.
This is one of the questions discussed by Michio Kaku in his book Hyperspace, which attempts to translate the mathematics of hyperspace theory into readily understandable language. This article is devoted to the same goal, leaving the details of the mathematics to the hyperspace theory article. Kaku traces the number of dimensions to Srinivasa Ramanujan's modular functions, but this article will start with some fundamentals and work its way into the mathematics. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Why 10 dimensions?. This entry is a fragment of a larger work. Link may die if entry is finally removed or merged.


I had always assumed that any dimension over four was a tricky metaphor for LSD :(
I remember seeing something on the science channel about String Theory that postulated a 12 dimensional multi-universe in order to make the theory work. They also said that gravity might be a by-product of a parallel universe, which further study of singularities might bear out.
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