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Robot Octopus Shows Off New Sculls

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posted on May, 21 2013 @ 01:34 PM
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Octopi are pro swimmers, thanks (at least in part) to that octet of arms they've got going on. They've adopted a particular swimming gait called sculling, which works great for them, but until they start publishing scientific papers, we're missing out on all of their gait testing data. Roboticists have had to start from scratch, and along the way, they've experimented with some swimming gaits that we've never seen a real octopus try and pull off.


A group of robotic scientist have program a miniature octopus robot to study how real octopus swim.


Here are some cool videos to give you an idea how octopus swim within the water.




Of all of these gaits, the only one that octopi actually use is the sculling gait, when all eight arms move in synchrony. However, according to recent experiments, some of the artificial gaits produce much smoother movements, which may make more sense for octopus-inspired robots.



Towards the end of the video, rigid tentacles are replaced with undulating compliant arms that look alarmingly realistic. There are still some important bits missing, though: in addition to the pump jet motor that serves as an octopus' primary method of propulsion, real octopi also have a web that connects the bases of the tentacles to each other. Future research on this project will start taking a look at what effect the web has on propulsion, and how actively controlled, multi-joint arms can be used to come up with even more gaits.



To be honest this project is really cool and I hope they'll have success with this project in the future.
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