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

"I am not a speed reader. I am a speed understander."
- Isaac Asimov

Kzinti Lesson - Propulsion As Weapon  
  The power of a craft's means of propulsion repurposed as an offensive weapon.  

This is also known as the Kzinti Lesson, as described by Larry Niven:

"A reaction drive's efficiency as a weapon is in direct proportion to its efficiency as a drive."

This is often used as a canonical example because the human beings were trained to be nonviolent; they were incapable of using weapons to harm others. Except for one crew member...

The Captain hurried, knowing that the Telepath couldn't stand this for long. “How do they power their ship?”
“It's a light-pressure drive powered by incomplete hydrogen fusion. They use an electromagnetic ramscoop to get their own hydrogen from space.”
“Clever… Can they get away from us?”
“No. Their drive is on idle, ready to go, but it won't help them. It's pitifully weak.”
“What kind of weapons do they have?”
The Telepath remained silent for a long time...
“None at all, sir.” The Kzin's voice became clearer; his hypnotic relaxation was broken by muscle twitches. He twisted as if in a nightmare. “Nothing aboard ship, not even a knife or a club. Wait, they've got cooking knives. But that's all they use them for. They don't fight.”

...

A twist of a large white knob turned the drive on full, and he slipped into the pilot seat before the gentle light pressure could build up.
He turned to the rear-view telescope. It was aimed at the solar system, for the drive could be used for messages at this distance. He set it for short range and began to turn the ship.

...

The other ship began to turn away from its tormentor. Its drive end glowed red.
“They're trying to get away,” the Captain said, as the glowing end swung toward them. “Are you sure they can't?”
“Yes, sir. That light drive won't take them anywhere.”
The Captain purred thoughtfully. “What would happen if the light hit our ship?”

...

Someone had steered the ships much closer together. The Kzinti ship was a huge red sphere with ugly projections scattered at seeming random over the hull. The beam had sliced it into two unequal halves, sliced it like an ax through an egg. Steve watched, unable to turn aside, as the big half rotated to show its honeycombed interior.

Technovelgy from The Warriors, by Larry Niven.
Published by Worlds of If in 1966
Additional resources -

The Warriors was published in 1966, so there are surely earlier examples in science fiction. For example, the Sardaukar used the attitudinal jets on a troop carrier as flame-throwers in Frank Herbert's Dune, published in 1964.

In The Dragon Masters, Jack Vance describes an advanced propulsion system built in secret by the sacerdotes; the protagonist forces them to use it as a weapon to defend themeseves.

The repellor rays from Armageddon 2419 AD by Philip Frances Nowlan are sometimes cited, but the story distinguishes disintegration rays.

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

Additional resources:
  More Ideas and Technology from The Warriors
  More Ideas and Technology by Larry Niven
  Tech news articles related to The Warriors
  Tech news articles related to works by Larry Niven

Articles related to Weapon
Can A Swarm Of Deadly Drones Take Out An Aircraft Carrier?
Has Turkey Been Stealing Rain From Iran?
We Need To Build Anti-Drone Systems For Civilian Spaces
Bullet Steers Itself! The Advanced Low-Cost Munitions Ordnance ALaMO

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 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

Science Fiction in the News

JAXA Int Ball 2 Coming Right Along As Star Wars Remote
'Hocus-pocus religions and archaic weapons are no substitute for a good blaster at your side.'

Robot Bricklayer Or Passer-By Bricklayer?
'Oscar picked up a trowel. 'I'm the tool for the mortar,' the little trowel squeaked cheerfully.'

Robot Gas Station Attendant Pumps Gas For You
'... he waited for the robotrix attendant to finish fueling up his ship.'

Engineer Creates Crazy Motorized Track Hospital Bed
The Roujin Z system provides care to fully bedridden patients - and then some!

Tiny Flying Robot Weighs Just One Gram
'Aerostat meant anything that hung in the air. This was an easy trick to pull off nowadays.'

Some Ringworld Configurations Are Stable
'The Ringworld had no horizon. There was no line where the land curved away from the sky.'

TRANSFORM Dynamic Furniture Concept Becomes What You Need
'An adjustment panel outside the door would cause it to extrude various appurtenances in memory plastic...'

Harvard Metamaterials Change Structure Instantly
'Annealed in any shape for a time, and codified, the structure of that shape is retained down to the molecules.'

SnapBot Robots - You Choose Their Legs And They Choose Their Gaits
It's not really polite to tear the limbs off robots.

Dino From Magical Toys An AI Companion To Children
'...the imaginary companions discovered by needful children.'

More SF in the News

More Beyond Technovelgy

Home | Glossary | Science Fiction Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.