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'm very taken by mythology. I read it at a very early age and kept on reading it. Before I discovered science fiction I was reading mythology."
- Roger Zelazny
 |
| Reaction-Motors | ||
| A spacecraft engine that works by firing matter out at high speed. |
This idea makes use of conventional physics.
| For three days Captain Grant had kept his great space-liner… ahead of the questing disintegrator rays of the Black Hawk only by burning his full battery of reaction-motors at their maximum power. |
| From Twelve Hours To Live,
by Jack Williamson. Published by Wonder Stories in 1931 Additional resources -
|
Here's what the drive looked like in operation:
The glow, he knew, was a fluorescent, electronic discharge in the radioactive gases jetting from the rockets of the racing ship...
The idea behind a reaction-motor is Newton's Third Law of Motion, which decrees that for every action, there is an equal and opposite reaction. For a spacecraft to move forward, you must throw matter out the other end.
Compare to the reactionless drive idea, which encompasses the various hyperdrives that allow a ship to move from one point to another in space, without traversing the space in between. See the inertialess drive from 'Doc' Smith's 1934 novel Triplanetary.
…Grant saw a vague pink glow come into being in the jet, star-sprinkled sky behind…
Comment/Join this discussion ( 0 ) | RSS/XML | Blog This |
Additional
resources:
More Ideas
and Technology from Twelve Hours To Live
More Ideas
and Technology by Jack Williamson
Tech news articles related to Twelve Hours To Live
Tech news articles related to works by Jack Williamson
| Japan Uses Explosives On Asteroid |
| Johns Hopkins Says Asteroid Deflection Will Be Difficult |
| Hayabusa 2 To Begin Asteroid Mining |
| Can Musk Starship Astronauts Use Magnetic Boots? |
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 Invention Timeline, or see what's New.
|
'A metal... light as cork and stronger than steel...'
'Ken lay full-length in the padded body compartment, his feet resting on the controlling bars of the directional planes, hands on the torpoon's engine levers.'
'... little machines, that went from plant to plant... cutting off the ripe fruit.'
'Recharge the batteries... in almost every town and village...'
'...a tiny, rocket-powered projectile, drove towards the mysterious bulk. It hit, exploding into a cloud of incandescent vapour.'
'The flycycles were miracles of compact design.'
These drones can provide situational awareness beyond visual line-of-sight capability.
'It resembled conventional human-operated transportation vehicles, but with one exception -- there was no driver's cabin.'
'Each one consists of a hub with many tiny spokes... On the end is a squat foot, rubber tread on the bottom...'
'A paper thin polycarbon screen unfurled silently from the top of the unit and immediately grew rigid.'
