Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Self-Replicating Modular Robots
Hod Lipson, Victor Zykov, Efstathios Mytilinaios and Bryant Adams have been working on machines that replicate themselves. Their strategy is to use small modules that attach to each other with electromagnets.
(From Self-Replicating Machine Module)
Each ten centimeter cube is an autonomous unit with a microprocessor and a set of instructions on how to link themselves with other modules.
For example, four blocks piled up on top of each other to form a tower can create another identical tower by swiveling around and picking up other blocks and piling them up. Obviously, much larger and more complex structures can be built by expanding on this model.
(From Self-Replicating Machine Pictures)
The self-reproducing machines demonstrate here are essentially modular robots, composed of multiple identical actuated modules with electromagnets to selectively weaken and strengthen connections so as to determine where the structure breaks and joins. Each module is a 10cm cube, split into two halves... One half of the cube can swivel relative to another half in increments of 120°, each time cycling three faces of the cube. Connected cubes can thus form and reconfigure into arbitrary morphologies... The cubes are powered at the base and transfer data and power through their faces. The control of the machine is distributed among the modules: A microcontroller onboard each module executes a motion schedule governed by time and contact events.
(From Self-reproducing Machines pdf)
John von Neumann was the first scientist to do rigorous work on the topic of self-replicating machines. However, science fiction author Philip K. Dick beat him to the punch with his 1955 short story Autofac, which described an automated factory that also had the capacity to reproduce itself by shooting tiny pellets full of nanomachines into the distance:
"They're building," O'Neill said, awed. He got up and prowled on. Off to the side, at the far edge of the gully, he came across a downed pellet far advanced on its construction...This one had made great enough progress to be identified. Minute as it was, the structure was familiar. The machinery was building a miniature replica of the demolished factory.
(Read more about Philip K. Dick's autofac)
I'd also add a reference to a more structured version of this idea, the Robot Cells (Crystal-Shaped Modules) from 1987 work by Michael P. Kube-McDowell.
The concepts explored by these simple modules may also have applications on other planets:
Self-replication could have major implications for how robots are used in remote environments where repairing them is difficult. "Self-replication is the ultimate form of repair," Lipson says. "You can imagine robotic systems on Mars or at the ocean bottom repairing themselves using a mechanism like this."
Read more about how autonomous modular machines might be used on other planets in TETWalker: Shape-Shifting Robot Swarm. See the Cornell Self-Replication website and the article at New Scientist . Thanks to Trevor Curran for the tip on this story.
Scroll down for more stories in the same category. (Story submitted 5/11/2005)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 3 )
Related News Stories - (" Robotics ")
No Tips! Robotic Food Delivery In Phoenix
'...he rewired the delivery robot so that it would serve him midnight snacks.' Robert Heinlein, 1962.
Micro-Robots Are Smallest, Fully Functional
'With a whir, the Scarab shot from the concealing shadows of the corner where it had hidden itself.' - Raymond Z. Gallun, 1936.
DIY Robotic Hand Made After Loss Of Fingers
'I made them... with the fine work of the watchmaker...' - Boris Zhitkov, 1931.
Robot Snakes No Longer Stopped By Stairs
'...she dropped her hands from the wheel, took the robot snake from his box.' - Lee Chaytor, 1958.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
SpaceX Wants A Moonbase Alpha
'And he had been sent with troops, supplies and bombs to command Russia's most trusted post, the Moonbase.'
Vast Apartment Living Will Get Even More Vast
'What is your population', I asked. 'About eighty millions.'
NASA Wants Self-Driving Or Remote-Controlled Vehicles For Lunar Astronauts
'THE autobus turned silently down the wide street of Hydropole. Robot-guided, insulated from noise and cold...'
Elon Musk Says Robotaxis Will Be Ready This August, 2024
'The car had no steering wheel, and no one drove!'
Moonwalkers AI-Controlled Electric Shoes
Now that's power walking that Hugo Gernsback would have approved.
Steve Jobs: 'Capture The Next Aristotle - With AI'
'It was disturbing to think of the Flatline as a construct...'
No Tips! Robotic Food Delivery In Phoenix
'...he rewired the delivery robot so that it would serve him midnight snacks.'
Electric Catamaran 'Explorer Eco 40m' Has 'Solar Skin'
'On went the electric-yacht faster and still faster.'
Orbital Mechanics, The Liftoff, The Turnover, The Retrograde Burn
'...the huge vessel had spun, with a sickening lurch, through a complete half-circle, the instant the power was reversed.'
Harvest Power From Tears And Blinking With Smart Contact Lens
'...he realized that it was not quite a clear lens. Speckles of colored brightness swirled and gathered in it.'
Europa Clipper Plate Carries A Special Message
'...a universal cryptogram — yet it is one which can be interpreted by any intelligent creature on any planet in the Solar System!'
Micro-Robots Are Smallest, Fully Functional
'With a whir, the Scarab shot from the concealing shadows of the corner where it had hidden itself.'
AI Enhances Images Your Brain Sees
'I could have sworn the psychomat showed pictures almost as sharp and detailed as reality itself'
Illustrating Classic Heinlein With AI
'Stasis, cold sleep, hibernation, hypothermia, reduced metabolism, call it what you will - the logistics-medicine research teams had found a way to stack people like cordwood and use them when needed.'
Deflector Plasma Screen For Drones ala Star Wars
'If the enemy persists in attacking or even intensifies their power, the density of the plasma in space will suddenly increase, causing it to reflect most of the incoming energy like a mirror.'
DIY Robotic Hand Made After Loss Of Fingers
'I made them... with the fine work of the watchmaker...'
