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

"To get anywhere, or even live a long time, a man has to guess, and guess right, over and over again, without enough data for a logical answer."
- Robert Heinlein

Half-Sphere Force Field  
  A protective force field that can manifest even as a half-sphere.  

Anybody can make a spherical force field, but I enjoyed this brief excursion into solid geometry from Heinlein.

There flickered into being over the bench, hanging in the air unsupported, a silvery ball some two feet across... it made Don think of a Christmas tree ornament.

...Conrad bent over the controls. "Act two," he announced. "We now cancel out half of the locus..." Another shape took being, a perfect half-sphere otherwise like the last.

From Between Planets, by Robert Heinlein.
Published by Charles Scribner's Sons in 1951
Additional resources -

It is invulnerable to harm, and ordinary processes (like a burning cigarette) inside the sphere are uninterrupted. And how does it work?

"...There is no popular way to explain it. If you were willing to spend five hard years with me, working up through the math, I could probably bring you up to the same level of ignorance and confusion that I enjoy. Some of the tensor equations involved are, to put it mildly, unique..."

Comment/Join this discussion ( 1 ) | RSS/XML | Blog This |

Additional resources:
  More Ideas and Technology from Between Planets
  More Ideas and Technology by Robert Heinlein
  Tech news articles related to Between Planets
  Tech news articles related to works by Robert Heinlein

Half-Sphere Force Field-related news articles:
  - Trophy Active Defense System Not Quite A Force Field

Articles related to Engineering
Blaux Your Personal Commuter Cooling Unit
SunnyFive 'Window' Has Full Spectrum Angled Natural Light
Liftware Level, Google's Smart Spoon
Prufrock The Newest Boring Machine

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

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...'

Would You Swallow An Origami Robot?
'Swallow it in an emergency--it goes down easily and works just as well inside as outside.'

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.