Scientists Invent Gel Controlled by Light


Inspired by the way plants grow toward light sources, bioengineers at UC Berkeley created a gel that can be manipulated by light. This video demonstrates how a new hydrogel material, shaped as a hand, can be controlled by laser light. What does this mean? Well, some evil genius could build an army of robots made of gels which he controls using light only, no moving parts, no source of energy needed. It’s alright, don’t be scared…

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