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"What television does is rent us friends and relatives who are quite satisfactory. This is quite something, to rent artificial friends and relatives right inside the house."
- Kurt Vonnegut, Jr.
 |
| Gravity Train | ||
| An underground railway system that utilizes gravity for acceleration. |
This same idea is a major plot 'device' in the 2012 version of the Total Recall movie.
| They joined the line for the gravity train to Archimedes. The four of them boarded, the car was sealed, and Lilo's weight dropped away as the car fell down the inclined tunnel for almost four hundred kilometers. Somewhere under the Appenines the tunnel begain to slope up again, gradually slowing their speed to a crawl as the car nosed into the elevator which took them up to inhabited levels. |
| Technovelgy from The Ophiuchi Hotline,
by John Varley. Published by Quantum Science Fiction in 1977 Additional resources -
|
This idea was also used in Hugo Gernsback's 1911 novel Ralph 124c 41 + - see the entry for Sub-Atlantic Tube.
And what is the best shape or curve for this tunnel to follow? See the discussion in the article for gravity-assisted subway from Larry Niven's 1976 story A World Out of Time.
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More Ideas
and Technology from The Ophiuchi Hotline
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Tech news articles related to The Ophiuchi Hotline
Tech news articles related to works by John Varley
| San Francisco Autobus |
| Volvo's Autonomous Truck |
| Eviation Alice Electric Plane First Flight |
| Robotaxi By Cruise Premieres in Austin, Texas |
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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.'
'THE autobus turned silently down the wide street of Hydropole. Robot-guided, insulated from noise and cold...'
'The car had no steering wheel, and no one drove!'
Now that's power walking that Hugo Gernsback would have approved.
'It was disturbing to think of the Flatline as a construct...'
'...he rewired the delivery robot so that it would serve him midnight snacks.'
'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.'
