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
 |
Slime Mold Network Engineering
Who would you ask to do the best possible job of connecting disparate locations with an efficient transport system? Engineers? Try slime mold.
In the picture shown below, researchers have carefully placed oat flakes in the pattern of Japanese cities around Tokyo. The slime mold Physarum polycephalum was introduced, eventually connecting the flakes with an efficient network to distribute nutrients throughout the single celled organism.
Transport networks are ubiquitous in both social and biological systems. Robust network performance involves a complex trade-off involving cost, transport efficiency, and fault tolerance. Biological networks have been honed by many cycles of evolutionary selection pressure and are likely to yield reasonable solutions to such combinatorial optimization problems. Furthermore, they develop without centralized control and may represent a readily scalable solution for growing networks in general. (1)
(Slime mold connects oat flakes like cities in Japan)
Initially, the slime mold dispersed evenly around the oat flakes, exploring its new territory. But within hours, the slime mold began to refine its pattern, strengthening the tunnels between oat flakes while the other links gradually disappeared. After about a day, the slime mold had constructed a network of interconnected nutrient-ferrying tubes. Its design looked almost identical to that of the rail system surrounding Tokyo, with a larger number of strong, resilient tunnels connecting centrally located oats. “There is a remarkable degree of overlap between the two systems,” Mark Fricker of the University of Oxford says. (2)
Fricker is one of several researchers contributing a paper this month to Science on using the slime mold’s behavior to create a biology-inspired mathematical description of network formation. In their research, the slime-based model first creates a fine mesh network that goes everywhere. The mathematical model uses an ongoing process to refine the network so that the tubes carrying the most material grow more robust and redundant tubes are removed.
It's not a prediction, but I'm reminded of the work of the clever intellectual cells in Greg Bear's wonderful 1984 novel Blood Music. In the story, they become more intelligent and, when introduced into the body of researcher Virgil Ulam, they restructure his body for greater efficiency, building networks that are actually visible across the surface of his skin.
If I can find my copy of the book, I'll drop in an appropriate passage. Unfortunately, Blood Music is not one of those books that stays put on your shelf; friends want to borrow it, you read parts of it and put it down somewhere.... you get the picture.
From (1) Rules for Biologically Inspired Adaptive Network Design via (2) Science News; thanks to an alert reader who passed on the tip about this great story.
Scroll down for more stories in the same category. (Story submitted 1/25/2010)
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 - (" Biology ")
Lunar Biorepository Proposed For Cryo-Preservation Of Earth Species
'...there was no one alive who had ever seen them. But they existed in the Life Bank.' - John Varley, 1977.
Let's Make Slaver Sunflowers! Engineering Plants To Reflect Light
'The mirror-blossom was a terrible weapon.' - Larry Niven, 1965.
Machete-Wielding Philodendron Isn't Going To Take It Anymore
'The tree ended its wild larruping, stood like a dreaming giant liable to wake into frenzy at any moment.' - Eric Frank Russell, 1943.
Tsunami Forecasts Improved By Ionosphere Signals
'Swifter than any tide could ebb, the water was receding from the shore.'
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
Nevada Will Use AI To Decide Worker Benefits
'They had screwed up and been blacklisted by Manna.'
Tether Cryptocurrency Flow Rate US$190Bn Per Day
'Alex did not find it surprising that people... were electronically minting their own cash.'
First Trips To Mars Announced By Elon Musk
'I had determined that my first attempt should be a visit to Mars.'
WaPOCHI Micro-Mobility Robot Follows Like A Pet With Your Bags
To follow the user like a pet while carrying their cargo!
Ultra-Realistic Robotic Arowana Robo-Fish
'Deveet unhooked his catch and laid it on the bank beside him. It was a metal fish.'
GITAI R1 Lunar Rover Like NASA Robonaut Centaur
'...waldoes in the screen followed in exact, simultaneous parallelism.'
Meshworm Soft Robot, With Peristaltic Crawling, Is Getting Better
'Seen close it was not completely flexible, but made instead of pivoted and smoothly finished segments.'
Mushroom 'Robot' Is Just A Start
'Some unknown race ... decided to help them out.'
Tesla Electric 'Giga Train' Operational In Germany
'...the cars are wedge-shaped at both ends.'
DOTPad Braille Device Offers Live Access
Amazing tactile display.
Biohybrid Robot Combines Living Muscle With Artificial Materials
'...great rectangular slabs of muscle, slung into a rectangular frame.'
Biohybrid Robots Made Of Living And Synthetic Materials
'If the biological robots were not living creatures, they were certainly very good imitations.'
Drug Induces Hibernation-Like State In Humans
'... drugged and chilled and stowed in sleep tanks.'
Poul Anderson's 'Brain Wave'
"Everybody and his dog, it seemed, wanted to live out in the country; transportation and communication were no longer isolating factors."
AI Note-Taking From Google Meet
'... the new typewriter that could be talked to, and which transposed the spoken sound into typed words.'
Qore IcePlates Are Personal Cooling Suits
'... underneath they consisted of networks of cooling tubes against the skin.'
