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
"There was a time when one old eccentric guy with a notebook could do something important to science. Now even the resources of a major university are often not enough."
- Jerry Pournelle
 |
| Positive Ray Propulsion (Ion Drive) | ||
| An ion drive. |
Very good and very early description of an ion drive system for propulsion.
| Nine slender sunships lay at the side of the wide, high-fenced field, just in front of their sheds. In the brilliant morning sunlight they scintillated like nine huge octagonal ingots of polished silver.
These war-fliers of the Moon Patrol were eight-sided, about twenty feet in diameter and a hundred long. Built of steel and the new aluminum bronzes, with broad vision panels of heavy vitrolite, each carried sixteen huge positive ray tubes. These mammoth vacuum tubes, operated at enormous voltages from vitalium batteries, were little different in principle from the "canal ray" apparatus of some centuries before. Their "positive rays," or streams of atoms which had lost one or more electrons, served to drive the sunship by reaction—by the well-known principle of the rocket motor. And the sixteen tubes mounted in twin rings about each vessel served equally well as weapons. When focused on a point, the impact-pressure of their rays equaled that of the projectile from an ancient cannon. Metal in the positive ray is heated to fusion, living matter carbonized and burned away. And the positive charge carried by the ray is sufficient to electrocute any living being in contact with it. |
| From The Prince of Space,
by Jack Williamson. Published by Amazing Stories in 1931 Additional resources -
|
Also a good early example of what Larry Niven called the Kzinti lesson, namely, that "a reaction drive's efficiency as a weapon is in direct proportion to its efficiency as a drive."
Compare to the ion drive from Equalizer (1947), by Jack Williamson; this is the first use of the term in science fiction. Also, see the T.I.E. fighters from the Star Wars novelization by George Lucas. See also the use of finely divided dust as propellant from Earthlight (1955) by Arthur C. Clarke.
Comment/Join this discussion ( 0 ) | RSS/XML | Blog This |
Additional
resources:
More Ideas
and Technology from The Prince of Space
More Ideas
and Technology by Jack Williamson
Tech news articles related to The Prince of Space
Tech news articles related to works by Jack Williamson
| Japan's LignoSat Space Wood Satellite And Dan Simmons' Treeship |
| Is It Time For Lunar Farside Telescopes? |
| Spaceflight Vertigo Solved By NASA Releasing The Kraken |
| Lunar Pogo Stick - Retro Technovelgy From 1968 |
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
'THE red tennis robot scooted desperately across the court...'
'The Consul remembered his first glimpse of the kilometer-long treeship...'
'Do you know what window washing used to cost by the hour?'
'Once the target is confirmed, it uses an IR laser to send a coded signal back to the parent, clearing it to attack.'
'I filled your bullet hole with flesh putty and the lattice.'
'... it will be easy to form an alphabet which shall enable us to converse with the inhabitants of the moon.'
'From the tower's huge octagonal base radiate wide silvery strips...'
'It was about five feet long... a black bullet head and red camera eyes.'
'The Law Society has strict rules on the use of pseudo-intelligent software...'
