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 did more research, and realized I almost would rather be a biologist than a writer, because there was incredible stuff going on!"
- Greg Bear

Personal Rocket Jet  
  A small, handheld jet pack that can be used to maneuver freely in space.  

"The trick to jetting yourself in space,"—he went on, 'lies in balancing your body on the jet—the thrust has to pass through your center of gravity. If you miss and don't correct it quickly, you start to spin, waste your fuel, and have the devil's own time stopping your spin. "It's no harder than balancing a walking stick on your finger—but the first time you try it, it seems hard.

"Rig out your sight." He touched a stud at his belt; a light metal gadget snapped up in front of his helmet so that a small metal ring was about a yard in front of his face. "Pick out a bright star, or a target of any sort, lined up in the direction you want to go. Then take the ready position— no, no! Not yet—I'll take it."

He squatted down, lifted himself on his hands, and very cautiously broke his boots loose from the side, then steadied himself on a cadet within reach. He turned and stretched out, so that he floated with his back to the ship, arms and legs extended. His rocket jet stuck straight back at the ship from the small of his back; his sight stuck out from his helmet in the opposite direction.

He went on, "Have the firing switch ready in your right hand. Now, have you fellows ever seen a pair of adagio dancers? You know what I mean—a man wears a piece of leopard skin and a girl wearing less than that and they go leaping around the stage, with him catching her?" Several voices answered yes. Hanako continued, "Then you know what I'm talking about. There's one stunt they always do—the girl jumps and the man pushes her up and balances her overhead on one hand. He has his hand at the small of her back and she lays there, artistic-like. "That's exactly the way you got to ride a jet. The push comes at the small of your back and you balance on it. Only you have to do the balancing—if the push doesn't pass exactly through your center of gravity, you'll start to turn. You can see yourself starting to turn by watching through your sight. "You have to correct it before it gets away from you. You do this by shifting your center of gravity.

From Space Cadet, by Robert Heinlein.
Published by Scribner's Sons in 1948
Additional resources -

Compare to the electrical tether from Garrett P. Serviss's 1898 novel Edison's Conquest of Mars, the Personal Jet Thrust from Robert Heinlein's 1948 novel Space Cadet and the broomstick from Arthur C. Clarke's 1952 novel Islands in the Sky.

Thanks to Winchell Chung for gathering this material on his site - see Project Rho.

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

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

Personal Rocket Jet-related news articles:
  - Laser-Activated Rescue Thrusters For Astronauts

Articles related to Space Tech
Students! NASA Wants To 3D Print Your Tool Design In Space!
Flock Of Minisats Will Image The Earth
The Manned Maneuvering Unit Story
Bigelow's Inflatable BEAM Module Ready For ISS In 2015

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

The Living Tree House
'There were trees comprised of a central columnar trunk and four vast leaves...'

Flying Defibrillator Ambulance Drone
'The death-reversal equipment is on its way...'

High Fidelity Produces More Expressive Avatars!
'They are the audiovisual bodies that people use to communicate with each other...'

Physicists Build Repulsor / Tractor Beam
'Brandon swung mighty tractor beams upon the severed halves of the Jovian vessel...'

Will You Upload Your Mind Anytime Soon?
And if so, how long will the copy last?

Students! NASA Wants To 3D Print Your Tool Design In Space!
'Mass-produced only in the orbiting factories...'

Amazing ARES Augmented Reality Sandbox
'First he showed him where the input and output of his brand-new kingdom were, and how to program wars...'

'3D Light Sculpture' Projected Directly Onto Retina
'...projects directly on the retina of the eye…'

3D Printer Vending Machine Dispenses Dreams
'Nanofax AG offers a technology that digitally reproduces objects, physically, at a distance.'

Why Not Nurse Grandma With A Robot?
'She's made of a combination of springs, levers, acoustic instruments...'

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.