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

"Science fiction is what scientists would do if they could - if they had enough grant money, enough time, and enough brains to do the wonderful things they would like to do."
- Greg Bear

Slow Glass Rod  
  A transparent glass rod that makes light travel so slowly that it can trap light within its depths.  

You've heard of burning bugs with sunlight concentrated with a magnifying glass? That's for sissies who can't figure out a different way to concentrate sunlight - by slowing it down.

He held a contraption made of a glass rod and assorted wires. Methuen sighted along his glass rod and pressed a button. A pop... and a flash!

"By applying the right e.m.f. to pure crown glass, its possible to raise its index of refraction to a remarkable degree. The result is that the light striking the glass is so slowed up that it takes weeks to pass through it in the ordinary manner. The light that is thus trapped can be released by making a small spark near the glass.

"I can shoot an hour's accumulated light energy out the front end of the rod in a very small fraction of a second.

From The Exalted, by L. Sprague de Camp.
Published by Astounding Science-Fiction in 1940
Additional resources -

Science fans will recognize one of the main properties of Bose-Einstein condensates, which can actually trap light waves, or slow them down to an inch a minute. Read a bit more about Bose-Einstein condensates; also, read about a modern experiment in which light is captured in a crystal.

Science fiction fans may recall the scenedows from Bob Shaw's 1968 story Light of Other Days. Probably the earliest references to the idea occurred in The Mirror That Remembered" (1932) by Christopher Blayre.

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

Additional resources:
  More Ideas and Technology from The Exalted
  More Ideas and Technology by L. Sprague de Camp
  Tech news articles related to The Exalted
  Tech news articles related to works by L. Sprague de Camp

Slow Glass Rod-related news articles:
  - Slow Light Will Speed Communications
  - Light-Trapping Nanodoughnut Like Slow Glass

Articles related to Material
3D Printed Damascus Steel Now Possible
3D Printing Of Metallic Glass
Draw Circuits With Conductive Ink
How To Encode The 'Memory' Of Materials

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

TytoCare Offers Futuristic Home Care
'Immediately an enormous apparatus fell on to her out of the ceiling...'

Powdered Regolith Propulsion
'... filling their great tanks with the finely divided dust which the ionic rockets would spit out in electrified jets.'

Ford's SafeCap, Opposite Of Niven and Barnes' Napcap
'In the napcap a client became an instant yoga master...'

Would You Get 'Chipped'? Michigan May Ban Employers
'Employees above a certain level were implanted with advanced microprocessors...'

Tesla Autopilot: What Does An Autonomous Car See When It Looks At The Road?
'Jeremiah is a sports-model to begin with and that kind is awfully hot-tempered.'

DNA Controls Swarms Of Molecular Robots
'They exist in loose swarms...'

Tether Asteroids To Save Us All
'If anything can glue the asteroids back into the planet they once were, magnology will do it.'

Blaux Your Personal Commuter Cooling Unit
A cooling unit had to be strapped to every commuter's back, by law.

3D Printed Damascus Steel Now Possible
'...lined with durite, that strange close-packed laboratory product.'

R9X Hellfire Missile With Long Blades Kills Queda Leader
'He was still roaring when the knife missile flicked past him...'

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.