Mathematical striptease

Description: Can you turn your shirt inside out if your hands are tied together? Go to open2.net at www.open2.net to find out how this works. Send us your videos of other topological challenges via the video comments. If you liked this video and want to find out more about maths check out free online courses from The Open University. www.open.ac.uk If you are interested in getting a qualification in this area, check out Mathematics courses at The Open University www3.open.ac.uk