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

"It's also important to vary your stimuli. I always look for new things to shock the system. Just as you make muscles grow by shocking them, you make the mind grow by shocking it."
- Bart Kosko

Bussard Ramjet  
  Propulsion method that scoops hydrogen atoms from space via electromagnetic fields.  

Niven makes good use of this real-life invention in the novel. It is a propulsion method that scoops hydrogen atoms from space via electromagnetic fields, then directs them into a fusion chamber and expels them out the back for thrust.

The emissions of a ramscoop tend to be high-energy hydrogen and helium, lithium radicals, borates, and lithium hydride, producing a purplish flame.

The magnetic field of a Ramscoop is considered to be lethal to living organisms.

The starships were Bussard ramjets. They caught interstellar hydrogen in immaterial nets of electromagnetic force, compressed and guided it into a ring of pinched force fields, and there burned it in fusion fire. Potenially there was no limit at all on the speed of a Bussard ramjet. The ships were enormously powerful, enormously complex, enormously expensive.
From A World Out of Time, by Larry Niven.
Published by Random House in 1976
Additional resources -

The Bussard ramjet design was originally proposed in 1960 by physicist Robert W. Bussard. Among the problems with the original design are

  • the interstellar medium in our neck of the woods is more rarefied than thought in the 1960's (meaning less fuel is available) and
  • interstellar hydrogen is mostly ordinary hydrogen-1 (rather than the easy-to-fuse deuterium and tritium isotopes) and so makes for a poorer fusion fuel.
Be sure to take a look at the entry for ram field, an extension on this idea from Niven's earlier novel Protector.

For a look at a propulsion system using a more tenuous fuel source, see light sail, from Sail 25, by Jack Vance.

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

Additional resources:
  More Ideas and Technology from A World Out of Time
  More Ideas and Technology by Larry Niven
  Tech news articles related to A World Out of Time
  Tech news articles related to works by Larry Niven

Articles related to Space Tech
Is There Life In Outer Space? Will We Recognize It?
Space Traumapod For Surgery In Spacecraft
A Space Ship On My Back
Elon Musk Tweets Versions Of Clarke's Operation Cleanup

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

Ontario Starts Guaranteed Minimum Income
'Earned by just being born.'

Is There Life In Outer Space? Will We Recognize It?
'The antennae of the Life Detector atop the OP swept back and forth...'

Space Traumapod For Surgery In Spacecraft
' It was a ... coffin, form-fitted to Nessus himself...'

Tesla Augmented Reality Hypercard
'The hypercard is an avatar of sorts.'

A Space Ship On My Back
''Darn clever, these suits,' he murmured.'

Biomind AI Doctor Mops Floor With Human Doctors
'My aim was just not to lose by too much.' - Human Physician participant.

Las Vegas Humans Ready To Strike Over Robots
'A worker replaced by a nubot... had to be compensated.'

You'll Regrow That Limb, One Day
'... forcing the energy transfer which allowed him to regrow his lost fingers.'

Elon Musk Seeks To Create 1941 Heinlein Speedster
'The car surged and lifted, clearing its top by a negligible margin.'

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.