A Japanese legend says that if you fold a thousand origami paper cranes then you will be granted one wish. If your wish is to tear those cranes and refold the paper into new shapes, you will be practicing a different papercraft: kirigami. In that craft, cutting and then folding a sheet lifts the two-dimensional material into a three-dimensional world. Kirigami is as old as paper itself, and it is gaining appreciation as a material-design tool with possible applications ranging from architecture to nanoscience.
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