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

 

Robo-Dolphin Demonstrates Porpoising

This biomimetic robot, a "robo-dolphin", swims at 4.5 miles per hour and compares well (considering its size) with a real dolphin.


(Robotic dolphin demonstrates "porpoising")

This water-bound robot, built by Professor Junzhi Yu and colleagues at the Chinese Academy of Science in Beijing, is loosely modeled on a spotted dolphin, and the leaping is not just for show. It's a step toward mimicking this behavior for better underwater vehicles with the speed, efficiency, and agility of dolphins.

A dolphin's incredible speed has long fascinated researchers. In 1936 biologist James Gray calculated that it should be impossible for dolphins to swim at speeds of more than 20 mph because of underwater drag. Known as Gray's Paradox, this puzzle wasn't completely solved until 2014, when aptly named biologist Frank Fish showed that a dolphin's tail generates much more force than previously thought. Still, our understanding of the dynamics of dolphin swimming is still changing and growing, which is why this robot is so important.

Yu's robotic dolphin is designed with particular emphasis on streamlining as well as a high-thrust tail powered by electric motors, as described in a new paper out this month. The flukes (tail fins) and flippers are miniature versions of the real thing. At 29 inches long and ten pounds, the bot overall is about one-third the size of an adult spotted dolphin.

The main load-bearing parts of the skeleton are made of titanium, with other sections made of steel, aluminum, and nylon. The skin and flippers are polypropylene. The robot is completely self-contained, and a lithium-ion battery provides more than three hours of swimming time.

SF fans may recall that, in his 2002 story Slow Life, science fiction author Michael Swanwick writes about robot fish who help explore distant worlds:

The Mitsubishi turbot wriggled, as if alive. With one fluid motion, it surged forward, plunged, and was gone.
(Read more about the Mitsubishi turbofish)

See also this robotic fish depicted in the 1988 TV series Red Dwarf:


(Robotic fish from Red Dwarf)

Update 02-Jan-2017: Check out the Search for the Silver Whale, or Under the Ocean in the Electric Dolphin (1902). End update.

Via Popular Mechanics.

Scroll down for more stories in the same category. (Story submitted 10/21/2016)

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 - (" Engineering ")

The Dune Ornithopter, Movie And Book
'The wings were at full spread-rest, their delicate metal interleavings extended.' Frank Herbert, 1965.

Two Towns Linked By Sculpture Portal In Real Time
'I am the Guardian of Forever.' - Gene Roddenberry, 1967.

Plasma Window Technology, Pressure Cushions and Deflector Doors
'The Marine Gunner stepped gingerly through the invisible barrier. He had to push.' - Niven and Pournelle, 1974.

Giant Telescope Lenses Made In Space
'...a cyclopean beast living among the asteroidal rubble of some distant sun.' - Arthur C. Clarke, 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.

 

 

 

 

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

Your Martian Dream Home, Made By Fungi
'... it was the cheapest building material known.'

The Dune Ornithopter, Movie And Book
'The wings were at full spread-rest, their delicate metal interleavings extended.'

100X Improvement In DNA Information Storage
'A record that wouldn't get lost and couldn't be destroyed.'

NASA 'Holoports' Doctor Onto Space Station
Star Trek Voyager Emergency Medical Hologram

Should We Train AIs To Imagine A Future Of Horrific Disasters
'LET ME TELL YOU HOW MUCH I'VE COME TO HATE YOU SINCE I BEGAN TO LIVE.'

Mouth Haptics Invented By Frederik Pohl In 1965, CMU Now Has Prototype
'What he got was indeed a kiss. It was disconcerting. No kissing lips were visible.'

Two Towns Linked By Sculpture Portal In Real Time
'I am the Guardian of Forever.'

3D Printed Robotic Tentacles
'... articulate ropes of steel dangling'

Update: Musk Doubles Down On Optimus Prime Humanoid Robot
'I shall introduce myself. I am R. Daneel Olivaw... I am a robot. Were you not told?'

Elon Musk: Production Of Robotaxis In 2024
'How about the steering wheel... I don't need one.'

True Crime Live Podcasting In Fiction
'And loving it too, those millions. Bloodthirsty to the last one of them.'

AI Employment Decision Software Reconsidered By California Lawmakers
'They had screwed up and been blacklisted by Manna. They were back living with their parents or sleeping on the sofa with a friend.'

Six Ships Are Now Docked At The International Space Station!
It's getting crowded up there!

SUCHO Saving Ukraine's Libraries Digitally
'No human mind could ever hope to master even a small portion of what was being received every second, Sam thought, but it would all be there...'

Optimus Prime Tesla Robot Overall Humanoid Software Architecture
'I shall introduce myself. I am R. Daneel Olivaw... I am a robot. Were you not told?'

Vast Cosmic Structures And Spooky Alignments
'This postulates a force-field of partly electromagnetic character, generated by gyromagnetic action within atomic nuclei near the center of the galaxy.'

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.