Latest By
Category:


Armor
Artificial Intelligence
Biology
Clothing
Communication
Computers
Culture
Data Storage
Displays
Engineering
Entertainment
Food
Input Devices
Lifestyle
Living Space
Manufacturing
Material
Media
Medical
Miscellaneous
Robotics
Security
Space Tech
Spacecraft
Surveillance
Transportation
Travel
Vehicle
Virtual Person
Warfare
Weapon
Work

"It's also important to vary your stimuli. I always look for new things to shock the system. Just as you make muscles grow by shocking them, you make the mind grow by shocking it."
- Bart Kosko

Sonomagnetic Fabric  
  Cloth that gathers sound energy.  

Magnetic fields can be produced by acoustic motions in electrically conducting media, like sea water. A sonomagnetic field can be induced in the ocean by submerged acoustic sources, which imparts a water mass oscillation in the ocean. Water particles crossing flux lines of the Earth's ambient magnetic field experience an induced electric field.

Whether or not this would work in the open air, with a fabric that would turn the resulting sonomagnetic fields into words you could hear, I don't know. Brin makes it work, though.

They were being scanned again, and it wasn't just someone's True-Vu this time, but real eavesdropping. "Some tokomak's got a big ear on us," Roland reported irritably.

...He looked around quickly, searching for the voyeur... Then he saw the geek - a codger this time - leaning against one of the slender stalks of a sunshade-photocell collector, looking directly at the three of them. And sure enough, amid the bushy gray curls spilling under his white sun hat, Remi saw a thin wire, leading from an earpiece to a vest made of some sonomagnetic fabric.

From Earth, by David Brin.
Published by Bantam in 1990
Additional resources -

See Sonomagnetic Field Characterization from Induced, Radial Current Waves for a bit more about sonomagnetic fields.

Comment/Join this discussion ( 0 ) | RSS/XML | Blog This |

Additional resources:
  More Ideas and Technology from Earth
  More Ideas and Technology by David Brin
  Tech news articles related to Earth
  Tech news articles related to works by David Brin

Articles related to Surveillance
Airport Security Now Using Predator-Style Heat Vision Helmets
'Alexa For Residential' A Landlord's Dream (Tenant's Nightmare?)
Foiling Facial Recognition, Fighting Coaster Viruses, Harlan Ellison-Style
Adversarial Pattern Shirts Confound Object Detection Systems

Want to Contribute an Item? It's easy:
Get the name of the item, a quote, the book's name and the author's name, and Add it here.

<Previous
Next>

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.

 

 

 

 

More News

ESA Space Claw To Grab Space Junk
Now, where have I seen this idea before?

'Black Friday' Online Shopping - In 1899!
'In your days they showed you a fashion-plate,' said the tailor, 'but this is our modern development.'

DARPA's Virtual Caves Explored By Virtual Robots
'If there's anything in here worth looking at, these pups'll find it.'

Glass Dome Cities On Mars, Dreamed By Elon Musk
'They will have flung great arches and domes of glass above the wider spaces...'

Looking Glass Display Good Enough For Science Fiction, Fantasy
'The figure seemed to be swimming toward the surface.'

Do You Need The Entire Fembot? Maybe Just The Hand
'...Men don't want real women anymore. You and I are behind the times...'

3D Printing With Sunlight And Sand
'We made a crude, small cell and were delighted...'

Samsung Gets Transparent Smartphone Patent
The Transparency of Things to Come

More SF in the News

More Beyond Technovelgy

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

Copyright© Technovelgy LLC; all rights reserved.