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
"What has allowed so many Psychopathic Personalities to rise so high in corporations and government, is that they are so decisive. Unlike normal people, they are never filled with doubts, for the simple reason that they cannot care what happens next."
- Kurt Vonnegut, Jr.
 |
| 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. |
| Technovelgy 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
For a look at a propulsion system using a more tenuous fuel source, see light sail, from Sail 25, by Jack Vance.
Compare to these propulsion systems: Light Pressure Propulsion (1867),
apergy (1880),
Beam-Powered Propulsion (1931),
Granton motor (1933),
Vibration-Propelled Cruiser (1928),
geodynes (1936),
ion drive (1947),
Planetary Propulsion-Blasts (1934),
stardrive (1953),
solar sail (light sail) (1962),
Lyle drive (1961),
laser cannon (1966),
Bussard ramjet (1976),
asymptotic drive (1976),
Interstellar Laser Propulsion System (1985).
Compare to the sweep field from Methuselah’s Children (1941) by Robert Heinlein and automatic refueling field from Biddiver (1941) by Theodore Sturgeon. Be sure to take a look at the entry for ram field, an extension on this idea from Niven's earlier novel Protector.
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
| Tumblin' Tumbleweed Rovers To Eplore Mars |
| Tentacled Robot Captures Space Debris |
| Reflect Orbital Sunlight On Demand |
| Elon Musk Wants Data Centers In Space |
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> |
|
|
|
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
'Looks like she has bought the Avatar Construction Set and put together her own...'
'Across the ground something small and metallic came, flashing in the dull sunlight of midday.'
'A broken circle with arrows pointing to a right-hand flow appeared in the chalf.'
'The object seemed melted together like wax — nothing was distinguishable.'
'Midges have many capabilities. To the untrained eye, they look like sparrows.'
'I made disks of my own voice to the number of five hundred very carefully chosen words.'
'His sensors out and working, and the whirring of the tape that sucked up sight and sound and shape and smell and form...'
