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MIT’s Transparent Gel Robots Can Catch a Live Fish

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Super Cool Physics Toys

In the past few months, we have seen many wonderful soft robots capable of performing various tasks. MIT engineers have come up with transparent gel robots that are fast enough to catch and release a live fish. Made from hydrogel, these robots move when water is pumped in and out of them.

The team created “several hydrogel robots, including a finlike structure that flaps back and forth, an articulated appendage that makes kicking motions, and a soft, hand-shaped robot that can squeeze and relax.” The robots are powered mainly by water. They are virtually invisible and ideal for underwater missions.  For instance, they can catch and release a live fish without causing any damage.

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