This Blood-Powered Robot Fish Can Swim For 37 Hours

By the new development of a synthetic circulatory system, an innovative robotic lionfish has the ability to swim around. This system pump around artificial blood that is made of battery fluid to its motors and components.

As reported by Nature News, with synthetic blood, the robot can store more energy (about 325 percent) than when it was bringing along a standalone battery pack. This amount of energy is enough to drift with the stream for 37 hours. Although this fish cannot swim too far or too fast, its invigorating bloodstream well indicates how we can use mimicked biological organisms to make future robots more efficient and autonomous than before.

Upstream

Not only can the robotic fish store energy but also take the place of the hydraulic fluid which can naturally move the fins of the robotic fish. New Scientist reported that it supported the robot stretch out the highest speed of just 0.1 inches for each second.

Talking to the publication, Cornell University's engineer Robert Shepherd who created the fish commented that 1.5 body lengths per minute is very slow and it looked like a loiter for a fish.

He also explained more about the technical operation: 

Empty Nest

By making use of hydraulic fluids and battery packs, scientists can provide robots with the necessary energy efficiency to be more autonomous as well as to be operational for longer courses of time without the need for human supervision.

And the one fish we're talking about won't be the first one to go far because even when we calculate its lifespan to be 37 hours, it can hardly survive out of the tank.