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
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
"...there's a great affinity between writing poetry and SF."
- Dan Simmons
 |
| Eavesdropping Ray | ||
| A device that allows others to hear from outside ordinary locked rooms. |
This is a very early reference to the concept of a device or technology that could penetrate a locked room to hear conversations within the room.
| Captain Carter added abruptly, "We're insulated here, Halsey?"
"Yes. Talk as freely as you like. An eavesdropping ray will never get through to us." "...Look here, lads, this is my chance to talk plainly to you. Outside, anywhere outside these walls, an eavesdropping ray may be upon us. You know that? One may never even dare to whisper since that accursed ray was developed." |
| Technovelgy from Brigands of the Moon,
by Ray Cummings. Published by Astounding Stories of Super Science in 1930 Additional resources -
|
Here's another quote from the story about using the device:
I threw the current into my apparatus. I prayed, if it met interference, that the slight sound would pass unnoticed. George Prince had said that he would make opportunity to disconnect the room's insulation. He had evidently done so. I picked up the interior sounds at once; my headphone vibrated with them. And with trembling fingers on the little dial between my knees as I crouched in the darkness behind the cylinder case, I synchronized.
Ray Cummings described eavesdropping rays this way in Voyage 13 (1938):
An eavesdropping ray! You can hear them sometimes, when you are close to a metal obstruction through which they are passing. An eavesdropping ray from some near-by point was focused upon Normah’s door. It was picking up the murmur of the three voices and humming a little with the door’s interference.
I set my tiny eavesdropper on the library floor beside me; connected its little battery; focused its projector. Was Miko's room insulated? I could not tell...
I realized the existence of a low hum — the tiny, microphonic, grinding hum of electronic interference.
Comment/Join this discussion ( 0 ) | RSS/XML | Blog This |
Additional
resources:
More Ideas
and Technology from Brigands of the Moon
More Ideas
and Technology by Ray Cummings
Tech news articles related to Brigands of the Moon
Tech news articles related to works by Ray Cummings
| Chameleon Personalized Privacy Protection Mask |
| Spherical Police Robot Rolls In China |
| Vietnam To Have Full Biometric Transparency |
| Simple Way To Defeat AI Face Recognition |
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> |
|
|
|
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 Science Fiction 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
'Their only check on the growth and development of Vulcan 3 lay in two clues: the amount of rock thrown up to the surface... and the amount of the raw materials and tools and parts which the computer requested.'
'I guess there's nobody round this table who doesn't have a Crosswell [tapeworm] working for him in the small intestine.'
'Figments of his mind in one sense, of course, for he had shaped them...'
'So the parent drone carries a spotter that it launches...'
'...nurse drones that would cruise around dumping large amounts of power into randomly selected pods.'
'It's done with a flip of the third joint of the tentacle on the down beat.'
'...for months Grantline bores had dug into the cliff.'
'I hope all those other cars are on automatic,' he said anxiously.
'It’s smart enough to go wrong in very complicated ways, but not smart enough to help us find out what’s wrong.'
