'Sandfish' Robot Moves Through Sand

A new sand-diving robot based on the sandfish lizard has been developed by a team led by Daniel I. Goldman, a physicist at Georgia Institute of Technology.

The sandfish lizard tucks in its limbs and wiggles forward with a whole-body sinusoidal traveling wave motion. Take a look at this video to see how the robot imitates the living organism.


(Sandfish robot video)

the team built a 35-centimetre-long version of the robot, made from seven aluminium segments linked by six motors, all clothed in spandex to prevent the motors from becoming jammed.

The team then tested their robot by burying it in a container filled with plastic spheres 6 millimetres across. When the robot undulated its body at a frequency similar to the lizard, they found it could move forward at speeds of up to 0.3 body lengths per wave cycle - just below the 0.4 body lengths per cycle that a submerged lizard can achieve.

The intent is to create robots that can easily move through rubble to find and rescue people trapped in earthquakes or other catastrophes.

Science fiction writers (and readers) tend to find more sinister uses for robots that move easily through the earth and sand. For example, the claws from Philip K. Dick's 1953 story Second Variety are described burrowing upward from underground robotic factories - they "run and burrow."


(Claws - or Screamers - from the 1995 movie)

Consider also the robot earthworms from Harry Harrison's 1962 short story War With The Robots.

Read more about the sandfish lizard-based robot research and see the more recent New Scientist article.

Scroll down for more stories in the same category. (Story submitted 6/26/2010)

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 ( 0 )

Related News Stories - (" Robotics ")

Tesla Will Have Metal Gear Snake Autocoupler, Musk Confirms
'Its motion was so swift, complex, and perfect that at first I did not see it as a machine, in spite of its metallic glitter.' - HG Wells, 1898.

I Love Ceiling-Mounted Robots
'Immediately an enormous apparatus fell on to her out of the ceiling...' - EM Forster, 1911.

Salto Jumping Robot Now Sticks Landing!
'Lucky touched the leap knob and the hopper's leg retracted.' - Isaac Asimov, 1954.

It's Time For Robots With Soft, Sensitive Skin
Sure, solid metal skin robots looked great once - like in science fiction movies of the 1920's.

 

Google
  Web TechNovelgy.com   

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.

 

 

 

 

 

Current News

Tesla Will Have Metal Gear Snake Autocoupler, Musk Confirms
'Its motion was so swift, complex, and perfect that at first I did not see it as a machine, in spite of its metallic glitter.'

Starlink Satellites Leading Edge On-Orbit Debris Mitigation
Propulsion-assisted orbital decay, brought to you by SpaceX.

Healight Ultraviolet Endotracheal Device Has Covid-19 Treatment Potential
'He applied the tip of the instrument to the interior of the wound...'

Parents Use AI To See One Last Message From Their Deceased Son
'...what's to keep me from showing face, Man?'

Satoshi Tomizu Creates Pocket Universes And Worldcraft Bubbles In Glass
'The Worldcraft bubble glittered, catching the light...'

Space Hero Inc. Offers Trip To ISS As Reality Show Prize
'This is Elmer Schmitz, presenting to you the finalists in our Aviation Quiz Program...'

I Love Ceiling-Mounted Robots
'Immediately an enormous apparatus fell on to her out of the ceiling...'

Armano Remote Control Excavator
'The bulldozer moved through the... mine... '

OK, NASA 3D Printer Of Food Not Yet Star Trek Food Synthesizer
Maybe not, but we're seeing definite progress.

Kelly Clarkson Show Like Black Mirror '15 Million Merits'
'These people are pieces of software called avatars.'

Salto Jumping Robot Now Sticks Landing!
'Lucky touched the leap knob and the hopper's leg retracted.'

Gyroscopic Median-Straddling Mass Transit Vehicles
'It was among these leviathans that the little gyrocar was daring to thrust its puny self...'

Bigrating Laser Beam-Riding Light Sail Is Self-Correcting
'That sail will be twenty thousand miles at the wide part.'

ISS Astronauts Test Estee Lauder 'Advanced Night Repair' Skin Serum
'Out in the New Moon, just ask for what you want...'

LG Wing Twisting Smartphone Might Be Fun
'A polycarbon screen unfurled...'

Mushroom Coffin Returns You To Nature, Naturally
'She touched the leaf. She was wanted.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.