Engineers working on technological innovations from solar cells to stretchy electronics have drawn inspiration from the Japanese art of kirigami. The lesser-known cousin of origami , which involves cutting and folding paper , helps to create three-dimensional shapes from flat, paper-like materials or to add form-fitting flexibility. Now scientists using kirigami have developed a new type of no-slip shoe sole that mimics the texture of snakeskin, reports Nicola Davis for the Guardian . The authors of the new research, published this week in the journal Nature Biomedical Engineering , say their innovation could help cut down on injuries from falls, particularly among older people. "Falls are the leading cause of death for older adults and the second leading cause of occupational-related deaths," Giovanni Traverso, an engineer at the Massachusetts Institute of Technology and co-author of the new research, says in a statement from Harvard University. "If we could