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ruzuzu commented on the word spacetime surgery
That's a bit iroquoisy--I was just thinking about temporal slices of spacetime worms.
October 15, 2012
deinonychus commented on the word spacetime surgery
"Matt Visser has described a way of visualising wormhole geometry:- take a 'normal' region of space- 'surgically remove' spherical volumes from two regions ('spacetime surgery')- associate the two spherical bleeding edges, so that a line attempting to enter one 'missing' spherical volume encounters one bounding surface and then continues outward from the other."(Wikipedia)