Watch this origami fold itself

Watch this origami fold itself


These two dimensional sheets of
plastic fold themselves into 3D shapes when activated by light Researchers printed a series of shapes onto
sheets of shrink film. When exposed to certain wavelengths of light, the underlying polymer heats up, causing the plastic to fold
along these “color hinges”. Flashing types of light in sequence allow the sheets to fold
into complex shapes. Red ink to green light, cyan ink reacts to
red light, and yellow ink to blue light. The sheets can also be designed to react differently to the same wavelength by
using various hues of the same color Darker hues react more
to the light more quickly Built in “Shape programming” like this
may have the potential to be used in implantable medical devices smart packaging, or even
in deploying satellites.

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