A robotic fish tail and an elegant math ratio could inform design of next-gen underwater drones

Researchers built a fishlike robot that uses a programmable artificial tendon to tune its own tail stiffness while swimming in a water channel. The results were impressive: The robot could swim over a wider range of speeds while using almost half as much energy as the same robot with a fixed-stiffness tail.

from Top Technology News -- ScienceDaily https://ift.tt/3CFC0tC