こりゃすごい。プログラム可能で、勝手に折れる折り紙だ。。。
Science! of the Day: Researchers have developed the world’s first programmable origami: A flat sheet of composite material capable of folding itself into boats, planes, and other standard origami fare using electric current-activated foil actuators.
I, for one, etc.
[slashdot.]
From the Scientific American:
The system, described in a paper published online this week in Proceedings of the National Academy of Sciences, consists of a thin sheet of resin–fiberglass composite, just a few centimeters across, segmented into 32 triangular panels separated by flexible silicone joints. Some of the joints have heat-sensitive actuators that bend 180 degrees when warmed by an electric current, folding the sheet over at that joint. Depending on the program used, the sheet will conduct a series of folds to yield the boat or airplane shape in about 15 seconds. The folding-sheet approach is an extension of the field of computational origami, the mathematical study of how flat objects can be folded into complex, three-dimensional structures.
