Hi Ralph & all, On 3 October 2012 13:02, Ralph Corderoy <ra...@inputplus.co.uk> wrote:
> A quick video introduction to the hexaflexagon. Tim brought a `back of > the envelope' one along last night. > https://plus.google.com/109197758463316568589/posts/1AM3Md56fUS > I recall having fun with these after reading a chapter about them in a Martin Gardner book, I'm sure. Fantastic things. That's quite a nice little video about them. I think I recall also doing one with square sections, by interfolding and gluing/taping a sequence of square bits but I don't recall what shape the overall piece was. > > > A Milkman's wallet. Grabs notes simply placed inside it. I suppose the > milkman had one because he was mainly collecting lots of notes on a > Saturday (interrupting _Swap Shop_!). > http://www.youtube.com/watch?v=4m6qhHfNJac > As we established, it depends on the paper being free to flex as the retaining bands 'flip' over it (or vice versa). I just found you can make a crude work-alike using a couple of plastic cards and a pair of elastic bands joining them, putting a 180 degree twist in each elastic band so it goes over one card then under its neighbour. -- best regards, Victor Churchill, Bournemouth -- Next meeting: ???, ???day, 2012-11-?? 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ New thread on mailing list: mailto:dorset@mailman.lug.org.uk How to Report Bugs Effectively: http://goo.gl/4Xue
