From cube-lovers-errors@curry.epilogue.com Fri Oct 25 16:08:00 1996 Return-Path: cube-lovers-errors@curry.epilogue.com Received: from curry.epilogue.com (localhost [127.0.0.1]) by curry.epilogue.com (8.6.12/8.6.12) with SMTP id QAA02317; Fri, 25 Oct 1996 16:08:00 -0400 Precedence: bulk Errors-To: cube-lovers-errors@curry.epilogue.com To: Cube-Lovers@AI.MIT.EDU From: Wei-Hwa Huang Subject: Re: Siamese Rubik's Cubes (was Re: DEAR TANOFF <<<<<<<<<<<<<<<< (fwd)) Date: 25 Oct 1996 14:02:32 GMT Organization: California Institute of Technology, Pasadena Message-ID: <54qh9o$4tu@gap.cco.caltech.edu> References: NNTP-Posting-Host: off.ugcs.caltech.edu X-Newsreader: NN version 6.5.0 #2 (NOV) Norman Diamond 25-Oct-1996 1355 writes: >A. Southern misinterpreted M. Velucchi's picture: >>> ------ >>> | | >>> | | >>> -----+----- >>> | | >>> | | >>> ------ >Siamese Rubik's cubes share an entire column of cubies, i.e. in the >case of two 3x3x3's they share an edge cubie and two corner cubies. >Cubies cannot move from one cube to the other. The shared column >of cubies cannot be separated or rearranged. The effect is like >bandaging an edge column on one 3x3x3 cube and bandaging an edge >column on another 3x3x3 cube and having two identical puzzles. A "creative" question: Suppose we want to be able to rotate the 17-cubie faces 180 degrees. Can anyone think of a mechanical structure that could achieve this?