|WikiProject Mathematics||(Rated C-class, High-importance)|
- Which one? There's no reference to Lackenby in this article, although he's mentioned in alternating knot, where I've added the reference, and also he's mentioned in the talk page for Heegaard splitting. Where exactly did you see mention of Lackenby? If I wrote it (which is likely), I can give you the reference. --C S (Talk) 15:18, 11 April 2006 (UTC)
Deleting five dimensions
Prior to my edit, there was a claim that spacetime might be five dimensional. I'm pretty up on these topics, and I've never heard this claim before. I'm deleting it. If anyone wants to revert, we can discuss it. —Preceding unsigned comment added by 184.108.40.206 (talk) 15:08, 20 August 2009 (UTC)
wikimedia commons sketches
The caption reads: All of the cubes in the image are the same cube, since light in the manifold wraps around into closed loops, the effect is that the cube is tiling all of space.