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

"If we're going to be consistent and advocate freedom of speech we have to advocate freedom of encrypted speech too. The genie is out of the bottle, cryptologically."
- Neal Stephenson

Gravity Detector  
  A device capable of detecting the gravitational field of a distant mass.  

How could you be sure that an object was coming toward you in space if you could not see it and if it did not occult light sources?

"...there was nothing we could see with the tele-periscopes, but the gravity detectors betrayed an invisible object of fifty thousand tons, approaching behind us - as if it had followed us from Neptune."
From The Cometeers, by Jack Williamson.
Published by Street and Smith in 1936
Additional resources -

The gravity detector turns out to be a useful device for ordinary journeys through the solar system as well:

"An asteroid?" Jay Kalam inquired. "You're certain?"

"I am," Bob Star said, too busy to turn. "The gravity detector shows a mass dead ahead. Millions of tons. The deflector fields wouldn't swing it an inch.

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

Additional resources:
  More Ideas and Technology from The Cometeers
  More Ideas and Technology by Jack Williamson
  Tech news articles related to The Cometeers
  Tech news articles related to works by Jack Williamson

Articles related to Space Tech
NASA's Astronaut Rescue Ball
NASA Asks For Moon To Earth Delivery Ideas
Rapid Automated Search For Habitable Planets Needed
NASA's Meteorite-Resistant Fabric Perfect For Space Armor

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

Bat Bot Robotic Flapping-Wing Drone
'The dark birdforms dotted the mountaintops like statues of prehistoric beasts, wings outspread...'

NASA's Astronaut Rescue Ball
'Ball and closely-prisoned man plummeted downward..'

ARM Wants To Build Brain Chips
'Slivers of microsoft, angular fragments of colored silicon...'

Sky Fence - A Drone-Proof Shield Created Over Prison
'There’s still a protective field over the whole thing. It volatilizes anything that tries to get through.'

Geoengineering The Atmosphere For Climate Change
'...a uniform temperature for each degree of latitude the year round.'

Archinaut Orbiting Robotic Factory
'mass-produced only in the orbiting factories...'

Cryonic Preservation - The Last Perk You'll Ever Need
'Is there not also a law providing for voluntary suspension of animation?'

Computers Understand Humans By Watching And Modeling Them
Soon, your computer will be watching you... and judging you.

NASA Asks For Moon To Earth Delivery Ideas
'Authority's 3-g catapult was almost one hundred kilometers long...'

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.