For decades robotics engineers have sought to copy the modes of transportation seen in the animal kingdom. In the past they have emulated animals such as; dogs, fish and ants. Now, we have a robot that moves like an octopus.
The robot version was built by the Foundation for Research and Technology-Hellas (FORTH) from flexible silicon webbing and presented at the International Conference on Intelligent Robots and Systems.
>“Speeds of 0.5 body lengths per second and propulsive forces of up to 10.5 N were achieved, with a cost of transport as low as 0.62,” the research team claim. The cost of transport is a measure of efficiency, calculated as P/mgv where P is the power input and m, g and v represent mass, gravity and velocity respectively. With so many species out there to draw on, the team had lots of ideas on how to improve their first prototypes. “The researchers report that the addition of a soft and supple silicone web has nearly doubled the speed of the roboctopus, and not satisfied with that, the scientists have also taught it to crawl, carry objects, and swim free in the Aegean Sea,” wrote Evan Ackerman of IEEE Spectrum. The benefits of the web are visible in the video below. Note also the capacity of the octopus to carry a ball while swimming.
“Let’s just hope the robots don’t get too much like their models and turn cannibal.”[SOURCE](http://www.techplus24.com/etc/robotic-octopus-created/)