"Chemical origami""Physicists in Israel have invented a neat method of making elaborate 3D structures from flat 2D discs. The trick is to pre-treat a gel disc half the size of a beer coaster with a monomer solution "blueprint" that selectively shrinks when heated. The technique, which cleverly demonstrates the link between 2D and 3D geometry, could be used by engineers to create self-assembling prototypes."
They also speculate creating 3d 'printers' that would also use this technique.
Let's just hope the kids don't get a hold of this anytime soon, or you'll never have paper or ink in the home again!
http://physicsweb.org/articles/news/11/2/21
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