These soft robots can do the butterfly stroke.
A team of scientists at North Carolina State University (NCSU) has developed two butterfly-shaped soft robots capable of swimming at 1.70 and 3.74 body lengths per second (BL/s). They are being referred to as the fastest swimming soft machines in the world because until now, soft robots were known to swim at a maximum speed of one body length per second.
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One of the authors and the associate professor at NCSU, Jie Yin told IE, “The connection has not been built until my kids went to the swimming school and learned the butterfly stroke. The butterfly stroke is a very fast swimming technique that requires an undulating body and also rotating and flapping arms.”
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