dear friends,

my fathers house has many rooms... ;-)

http://antwrp.gsfc.nasa.gov/apod/ap070318.html

be well, be love.

david

a higher dimensional universe?
applet credit & copyright: mark newbold

explanation: does our universe have higher but unusual spatial dimensions?
this idea has been gaining popularity to help explain why vastly separated parts
of our universe appear so similar, and why the geometry of our universe does not
seem to result naturally from the amounts of matter it seems to contain. the
idea is also prevalent in modern attempts to combine gravity and quantum
mechanics that include m-theory (formerly string theory) and randall-sundrum
theory. such models involve branes and bulks and frequently attempt to explain,
among other things, why some quantum energies and the measured cosmological
constant are so small. above, 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.



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