GhostBot Robotic Ghost Knifefish

The robotic ghost knifefish is more maneuverable than any of its predecessors, able to change from swimming forward and backward to swimming vertically almost instantly. The device imitates the development of the black ghost knifefish, found in the Amazon basin.


(The GhostBot video)

Led by Malcolm MacIver, associate professor of mechanical and biomedical engineering at Northwestern’s McCormick School of Engineering and Applied Science, the team’s results are published in the Journal of the Royal Society Interface.

The black ghost knifefish, which works at night in rivers of the Amazon basin, hunts for prey using a weak electric field around its entire body and moves both forward and backward using a ribbon-like fin on the underside of its body.

MacIver, a robotics expert who served as a scientific consultant for “Tron: Legacy” and is science advisor for the television series “Caprica,” has studied the knifefish for years. Working with Neelesh Patankar, associate professor of mechanical engineering and co-author of the paper, he has created mechanical models of the fish in hopes of better understanding how the nervous system sends messages throughout the body to make it move.

SF fans of course remember the the Mitsubishi turbot, the robofish that is the star of Michael Swanwick's 2002 novelette Slow Life. In the story, astronauts gamely explore Titan, one of the moons of Saturn, while doing good public relations by answering constant questions posed for them over the Web. The robofish is used to swim not just in water, but in icy lakes of methane and ammonia:

Consuelo carefully cleaned both of her suit’s gloves in the sea, then seized the shrink-wrap’s zip tab and yanked. The plastic parted. Awkwardly, she straddled the fish, lifted it by the two side-handles, and walked it into the dark slush.
She set the fish down. "Now I’m turning it on."
The Mitsubishi turbot wriggled, as if alive. With one fluid motion, it surged forward, plunged, and was gone.
Lizzie switched over to the fishcam.
Black liquid flashed past the turbot’s infrared eyes. Straight away from the shore it swam, seeing nothing but flecks of paraffin, ice, and other suspended particulates as they loomed up before it and were swept away in the violence of its wake. A hundred meters out, it bounced a pulse of radar off the sea floor, then dove, seeking the depths... (
read more)

Via Northwestern press release.

Scroll down for more stories in the same category. (Story submitted 1/19/2011)

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 ( 1 )

Related News Stories - (" Robotics ")

HEXA Robotic Help For Plants
Then some unknown race had chanced upon the dreamers and decided to "help them out." - Vernor Vinge, 1992.

DIY Robot Shoots You In The Face
'...there were automatic guns that fired ligamine darts.' - Michael Crichton, 1969.

Qoobo Headless Robotic Therapy Cat Was Anne McCaffrey's Idea
'...used as surrogates in intense dependency cases.' - Anne McCaffrey, 1990.

PUFFER Robots - From Philip K DIck's Second Variety?
'Across the ground something small and metallic came, flashing in the dull sunlight of midday.' - Philip K. Dick, 1953.

 

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

Dubai Scorpion Police Hoverbike Ready To Pull Young Kirk Over
'Is there a problem, officer?'

HEXA Robotic Help For Plants
Then some unknown race had chanced upon the dreamers and decided to "help them out."

Korean Tesla Model S Video 'Excelsior' Is Indeed Our Motto
'Improving man by bringing him close to Nature, while they combine the sensations of coasting with the interest of seeing the country well...'

DIY Robot Shoots You In The Face
'...there were automatic guns that fired ligamine darts.'

A Bayesian Approach to Safe Imitation Learning For AIs and Robots
Um, how about that pension for the humans who serve as the models for robot behavior?

Qoobo Headless Robotic Therapy Cat Was Anne McCaffrey's Idea
'...used as surrogates in intense dependency cases.'

Autonomous Cars Talk To Each Other At MCity
'My cars talk to one another.'

PUFFER Robots - From Philip K DIck's Second Variety?
'Across the ground something small and metallic came, flashing in the dull sunlight of midday.'

Russian Space Garden
'We saw the gardens, flooded with artificial sunlight...'

Targeted Neuroplasticity Training For 'Downloading Skills'
'I know kung-fu.'

U of M's MCity To Feature Asimov's Automatobuses
Should you turn autonomous buses off?

Crazyflie Drone Swarm Technology
'...Programmed to hang in space in a hexagonal grid pattern.'

Our GodBot, Who Art In Cyberspace
Vaal hungers! We must serve him.

easyJet Short-Haul Electric Jets
Have a little faith, will you? They're working on it.

Meet Assist-e Honda's Self-Balancing Motorcycle
'He had never ridden any motorized device that lacked onboard steering and balance systems...'

Kalashnikov's One-Seater Hovercraft
Not for windy days.

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.