Turns out robot maker Festo did more than just dream about robot tentacle arms; they instantiated their idea, using elephant trunks as their model. Take a look at this demonstration video.
(Festo Bionic Arm)
I was also fascinated by the fabrication process, which creates lightweight, flexible and energy-efficient robotic manipulators.
Festo has been very creative in the last few years; take a look at some of their work:
Festo Aqua Ray Robot
Aqua_ray is a remote-controlled fish driven by water hydraulics, the shape and movements of which have been based on the model of a manta ray.
Robot Arm With Fluidic Muscles
The company describes it as a "combination of mechatronics and the biological model of a human being."
Boy Makes Biomimetic Turtle Robot
't came out into plain view. Darkington glimpsed a slim body and six short legs of articulated dull metal.'
Origin F1 Humanoid Robot's Facial Skin
'I could look down at that face of carefully molded synthetic rubber, tinted the exact shade of the doctor's living flesh.' - Rog Philips, 1950.
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Boy Makes Biomimetic Turtle Robot
't came out into plain view. Darkington glimpsed a slim body and six short legs of articulated dull metal.'
Elon Musk Wants Data Centers In Space
'Internally it’s made up of millions of components, but the most important ones are the thinking and memory parts of the Mind proper.'
Origin F1 Humanoid Robot's Facial Skin
'I could look down at that face of carefully molded synthetic rubber, tinted the exact shade of the doctor's living flesh.'