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

"Individual science fiction stories may seem as trivial as ever to the blinder critics and philosophers of today -- but the core of science fiction, its essence has become crucial to our salvation if we are to be saved at all."
- Isaac Asimov

Lidar  
  Radar-like system that uses electromagnetic radiation at optical frequencies (visible light) for range-finding and analysis.  

This is a very cool technology, and one which has real potential for use (and miniaturization).

If you stared carefully into the fog and focused on a point inches in front of your nose, you could see it sparkling, like so many microscopic searchlights, as the immunocules swept space with lidar beams. Lidar was like radar except that it used the smaller wavelengths that happened to be visible to the human eye.
From The Diamond Age, by Neal Stephenson.
Published by Bantam Books in 1995
Additional resources -

Lidar stands for Light Detection And Ranging; it is a real technology being explored today. The device sends light out toward a target, which interacts with the target and is changed by it. Some of this light is reflected or scattered back to the lidar device, where it is analyzed. The simplest lidars are range finders (determine the distance to the object). DIAL (Differential Absorption Lidar) is used to measure the concentrations of chemical pollutants in the atmosphere. A DIAL uses two selected laser wavelengths; one is absorbed by the target molecules, the other is not. The difference in the return signals can be used to determine the concentration of the selected molecule in the target sample.

Other names for lidar are laser radar, optical radar and ladar. Find more information about lidar at the LIDAR Tutorial, courtesy of our friends at NASA.gov.

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

Additional resources:
  More Ideas and Technology from The Diamond Age
  More Ideas and Technology by Neal Stephenson
  Tech news articles related to The Diamond Age
  Tech news articles related to works by Neal Stephenson

Articles related to Misc
Is There A Subterranean Ocean?
The Robotic Shopping Cart Of The Future
Arctic Resource Jackpot An Old Wish
Marie Curie's Papers Still Radioactive

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

Tesla Semi 'Electrotruck' Unveiled
Elon Musk unveils yet another technological marvel.

Watch What People Are Seeing Via Brain Scanning
'had managed to see through the other man's eyes as the other man, all unaware, washed their Zis limousine sixteen hundred meters away...'

Integrated Circuits Printed Right Onto Fabric!
'...a shirt that displayed email on its sleeve.

Interstellar Asteroid Visits Our Solar System
'This asteroid had whirled in from the cold of the interplanetary space...'

PRIMA Bionic Vision Restoration
'The VISOR... was a medical device used in the Federation to aid patients who have suffered loss of eyesight...'

Audi Traffic Jam Pilot Knows If You're Sleeping
'Even here, riding a garbage truck to eternity, the machine watched him...'

UM Hall Thruster Breaks Records
Someday, we'll see an ion drive used to get to Mars.

Ionity Ultra-fast Charging Station Network
'Recharge the batteries... in almost every town and village...'

VAuth Voice Security Wearable From University of Michigan
'Siri, I gave you a voice command...' 'Yes, but do I know you?'

Ubiquiti FrontRow Camera Records Your Life
Why be choosy? Just upload your whole life to the Internet, and be done with it.

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.