If decades of science fiction films have taught us anything, then the bots that are removing humanity from Earth will bleed when the possible robot uprising takes place. Sure, they may spew out Robo-Body-Fluid in greens or blues, but the dangerous AI-powered robots of the future always seem to have some kind of blood.
Modern robots do not really have much in the way of blood. A robot powered by a kind of hydraulic system might come close, but let's face it, the vast majority of today's robots are not bleeding. A research team at Cornell University, in collaboration with the University of Pennsylvania, believes that this may change.
In a new article published in Nature the research team describes what it called the "electrolytic vascular system" developed for soft-robotic applications. Scientists set out to develop a multipurpose system that can solve two complicated problems in robotics: force and motion.
In the animal world, many body systems do not only fulfill one or two but many different tasks at the same time. In millions and millions of years evolution has eradicated some rather efficient organisms. In contrast, robots pale compared to dedicated systems to solve single problems with little overlap.
The scientists tried to remedy this by constructing a robotic fish that was equipped with a so-called crude circulatory system. The "blood" in this case is a liquid that not only serves as a battery to store energy, but is also used by a hydraulic system so that the fish can move its fins.
As you can see in the video, the Robo Fish is not exactly a speed demon, but by using the robot's blood to store its energy, that is Machine more efficient and tiny step closer to being animal from the point of view of mass.