Rubber bands may provide important clues for fabricating a variety of 3D shapes from flat parts, according to results published April 23, 2014, in the open access journal PLOS ONE by Jia Lui from Harvard and colleagues.
In this video, both ends are free to rotate.
Credit: Liu J, Huang J, Su T, Bertoldi K, Clarke DR (2014) Structural Transition from Helices to Hemihelices. PLoS ONE 9(4): e93183. doi:10.1371/journal.pone.0093183
[ Read the Article: Rubber Band Distortions Lead To Discovery Of A New Shape ]