Hi, I am a sculptor working with glass. I have come to this forum for some information. Several years ago I read an article on sting/M-theory that gave a description of one of the possible shapes the the 7 compact extra dimensions of m-theory. I have been unable to find the article again. I shall do my best to remember the description. It was something like: 3 curled up dimensions surrounding another 3 curled up dimensions somewhat like a russian doll. These two "sets" of dimensions are somehow separated yet a strange straw-like dimension stretches between between these two "sets", making a total of seven extra compact dimension rolled up into a plank sized nugget. Does this mean anything to anyone. I am interested to make my next project a representation of this preposed shape. I would appreciate any information, the name of this structure, web references etc. I am also curious as to how a straw like dimension could represent only one dimension. Thanks Dave.