When curved materials flatten, simple geometry can predict the wrinkle patterns that emerge

An object that's intrinsically flat, say a piece of paper, can be shaped into a cylinder without stretching or tearing it. The same isn't true, however, for something intrinsically curved like a contact lens. When compressed between two flat surfaces or laid on water, curved objects will flatten, but with wrinkles that form as they buckle.

from Phys.org - latest science and technology news stories https://ift.tt/7ZPNHVv

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