Universe: Higher Dimensions
Universe: Higher Dimensions
| Topics: |  Cosmology The Universe |
Introduction
Since the 1970's, the definition for Universe has been extended by some physical theories that attempt to unify the forces and particles into a "Theory of Everything." One way is via the M-theory formalism which follows from supersymmetric string theory. In this scenario, each 3-dimensional universe exists as a structure called a "brane." These branes are 3-dimensional slices of our spacetime, in which all our particles and fields are trapped, except gravity, but there can be many different brane universes existing in the required 10 or 11-dimensional arena, called the Heap, in which gravity actually operates.
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External Links
- A Higher Dimensional Universe? - Astronomy Picture of the Day, March 18, 2007, NASA.
- Brane - The Encyclopedia of Science, David Darling, Ph.D.
- Brane Theory of Multiple Dimensions, an animation - (Java Applet, Requires Java Runtime. Displays a dynamic three-dimensional drawing (two spatial plus one time) of a four-dimensional depiction of a five-dimensional cube (a hypercube with four spatial dimensions is also known as a tesseract) is shown. Donning red-blue glasses will give the best multi-dimensional perspective.) Goddard Space Flight Center, NASA.
- M-Theory - Wikipedia.
- String Theory - The Internet Encyclopedia of Science, David Darling, Ph.D.
- Superstring Theory - The Internet Encyclopedia of Science, David Darling, Ph.D.
- Superstring Theory - Wikipedia.
- "The Official String Theory Website" - Patricia Schwarz, Ph.D.
Preview Image
"Brane Theory of Multiple Dimensions" - This animation shows a string of other potential universes, and attempts to convey the Brane Theory of Multiple Dimensions in which there are multiple universes, the touching of any two causing an event such as the Big Bang. When two touch together, they cause a spark, possibly creating another universe. View the 10.8 sec. animation in these formats: Quicktime 1280x720 (30 fps) 34 MB, MPEG-4 1280x720 (60 fps) 7 MB. (Source: NASA.)
Citation
Odenwald, Sten, Ph.D. (Contributing Author); Bernard Haisch (Topic Editor). 2009. "Universe: Higher Dimensions." In: Encyclopedia of the Cosmos. Eds. Bernard Haisch and Joakim F. Lindblom (Redwood City, CA: Digital Universe Foundation). [First published February 14, 2008].
<http://www.cosmosportal.org/articles/view/138900/>
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