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
 |
Ratheon Swimmer Denial
Raytheon Corporation's new "swimmer denial" system can be used to protect ships from spies or terrorists. Their underwater sensors detect an unwelcome presence and then emits pulses of low frequency audio. The pulse rate and audio frequency are chosen to make human organs resonate like organ pipes, causing swimmers to vomit into their masks or suffer internal ruptures.
Raytheon's new system is considered more friendly to marine life because the main sound projector, in the middle of the secure zone, emits sounds with power and frequency that are relatively safe. A dozen or so secondary projectors in a ring round the zone also emit safe pulses. But in the region near each secondary projector the main and secondaries combine to produce a sound which is dangerous.
In 1976, Roger Zelazny wrote about a sonic curtain used as an underwater fence in his story 'Kjwalll'kje'k'koothailll'kje'k:
Read more about Raytheon's product here. You might also be interested in Active Denial Technology or the minority report glove interface, both from Raytheon.
Each of the four areas is enclosed by a sonic wall, a sound barrier that keeps everything outside out and everything inside in... At a number of points the wall possesses sound locks - a pair of sonic curtains several meters apart, which are operated by means of a simple control located on the bottom. Dolphins are capable of teaching one another how to use it ...
(Read more about sonic curtain)
Scroll down for more stories in the same category. (Story submitted 1/12/2006)
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 ")
Climate Engineering In California Could Make Europe's Heat Waves Worse
'Pina2bo would have to operate full blast for many years to put as much SO2 into the stratosphere as its namesake had done in a few minutes.' - Neal Stephenson, 2021.
Textiles That Harvest Energy And Store It
'The clothes and jewelery drew their tiny power requirements from her movements.' - Alastair Reynolds, 2005.
Coin-Sized Nuclear Battery Good For 100 Years
'...power pack the size of a pea.' - Alfred Bester, 1956.
The FLUTE Project - A Huge Liquid Mirror In Space
'It's area, and its consequent light-gathering capacity, was many times greater than any rigid mirror...' - Raymond Z. Gallun, 1934.
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
Cognify - A Prison Of The Mind We've Seen Before In SF
'So I serve a hundred years in one day...'
Robot With Human Brain Organoid - 'A Thrilling Story Of Mechanistic Progress'
'A human brain snugly encased in a transparent skull-shaped receptacle.'
Goodness Gracious Me! Google Tries Face Recognition Security
'The actuating mechanism that should have operated by the imprint of her image on the telephoto cell...'
With Mycotecture, We'll Just Grow The Space Habitats We Need
'The only real cost was in the plastic balloon that guided the growth of the coral and enclosed the coral's special air-borne food.'
Can A Swarm Of Deadly Drones Take Out An Aircraft Carrier?
'The border was defended by... a swarm of quasi-independent aerostats.'
WiFi and AI Team Up To See Through Walls
'The pitiless M rays pierced Earth and steel and densest concrete as if they were so much transparent glass...'
Climate Engineering In California Could Make Europe's Heat Waves Worse
'Pina2bo would have to operate full blast for many years to put as much SO2 into the stratosphere as its namesake had done in a few minutes.'
Optimus Robot Will Be A Good Nanny, Says Musk
'Nanny is different,' Tom Fields murmured... 'she's not like a machine. She's like a person.'
ESA To Build Moon Bases Brick By Printed LEGO Brick
'We made a crude , small cell and were delighted - and, I admit, somewhat surprised - to find it worked.'
Does The Shortage Of Human Inputs Limit AI Development?
'...we've promised him a generous pension from the royalties.'
Textiles That Harvest Energy And Store It
'The clothes and jewelery drew their tiny power requirements from her movements.'
LORIS Passive-Gripper Climbing Robot
'At the end of each appendage's eight fingers there are tinier appendages...'
Neuroplatform Human Brain Organoid Bioprocessor Uses Less Electricity
'Cultured brains on a slab.'
Drug To Regenerate Teeth In Humans
'We want to do something to help those who are suffering from tooth loss or absence,' said lead researcher Katsu Takahashi.
Coin-Sized Nuclear Battery Good For 100 Years
'...power pack the size of a pea.'
Live Stream With Meta-Ban Multimodal Smart Glasses
'...the bug-eyed, opaque gape of her True-Vu lenses.'
