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"The answer to the problem of information overload on the Net is reputations… engineer a system called a reputation server."
- Neal Stephenson
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| 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. |
| Technovelgy 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…
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Tech news articles related to Twelve Hours To Live
Tech news articles related to works by Jack Williamson
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| Orbital Mechanics, The Liftoff, The Turnover, The Retrograde Burn |
| Can A Human Land A SpaceX Rocket On Its Tail? |
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'And he had been sent with troops, supplies and bombs to command Russia's most trusted post, the Moonbase.'
'What is your population', I asked. 'About eighty millions.'
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'The car had no steering wheel, and no one drove!'
Now that's power walking that Hugo Gernsback would have approved.
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'On went the electric-yacht faster and still faster.'
'...the huge vessel had spun, with a sickening lurch, through a complete half-circle, the instant the power was reversed.'
'...he realized that it was not quite a clear lens. Speckles of colored brightness swirled and gathered in it.'
