Geometry, Relativity, and the Fourth Dimension

[kiaer.ts]

Questions of higher dimensions, bent space, and finite yet unbounded space time are diificult ones to discuss in an internet forum, without pictures or the ability to talk in real time

The book Geometry, Relativity, and the Fourth Dimensionby Rudolph Rucker is one I read in childhood which explains these concepts which it is necessary to hold before one can understand or criticize such theories. If you wish to understand these ideas, you can acquire this small, fluent, and well illustrated book used for less than $5 at abebooks.com or elsewhere.

[kiaer.ts]

Here is a projection of a rotating tesseract, a fourth-dimensional hypersolid. If the universe is a flat hypervolume, then it shares the same topology.

http://en.wikipedia.org/wiki/Tesseract

Edited September 9, 2010 by Ted Keer