Video of a Tiny Plastic Underwater Robot that Moves by Magnetism and Light (VIDEO)
Caption
Researchers at Eindhoven University of Technology developed a tiny plastic robot, made of responsive polymers, which moves under the influence of light and magnetism. In this video, the artificial polyp of 1 by 1 cm attracts and grabs the floating oil droplet. The stem moves under the influence of magnetism, it therefore creates a current in the water which attracts the oil droplet to its tentacles. The tentacles then close around the oil droplet, under the influence of UV light. Blue light can open the tentacles again to release the droplet.
Credit
Marina Pilz Da Cunha
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