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"Cyberspace is a metaphor that allows us to grasp this place where since about the time of the second world war we've increasingly done so many of the things that we think of as civilization."
- William Gibson
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| Pseudogravity | ||
| Gravity produced by artifice, rather than by a suitably large mass. |
This term was typically used to describe the "gravity" created in a spinning orbital habitat; later, it was extended to other types of artificial gravity.
| Bobo trotted away in the long loping strides permitted by the low pseudogravity near the axis of rotation of the Ship. |
| Technovelgy from Common Sense,
by Robert Heinlein. Published by Astounding Science Fiction in 1941 Additional resources -
|
Heinlein uses this idea again in his description of Wheelchair, the orbital home of Waldo F. Jones in the 1942 novella Waldo:
This basic problem of space travel was recognized as early as the 17th century; see the entry for weightlessness in space from The Man in the Moone (1638), by Francis Godwin.
See the entry for city of space from this same work for a more detailed discussion about artificial gravity.
For the first use of the idea see artificial gravity from Brigands of the Moon (1930) by Ray Cummings. Published the same year was the artificial gravity system from Last and First Men (1930) by Olaf Stapledon. See also paragravity from Collision Orbit (1941) by Jack Williamson.
Waldo F. Jones seemed to be floating in thin air at the center of a spherical room. The appearance was caused by the fact that he was indeed floating in air. His house lay in a free orbit, with a period of just over twenty-four hours. No spin had been impressed on his home; the pseudo gravity of centrifugal force was the thing he wanted least. He had left Earth to get away from its gravitational field; he had not been down to the surface once in the seventeen years since his house was built and towed into her orbit; he never intended to do so for any purpose whatsoever.
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'Aerostat meant anything that hung in the air. This was an easy trick to pull off nowadays.'
'The Ringworld had no horizon. There was no line where the land curved away from the sky.'
'An adjustment panel outside the door would cause it to extrude various appurtenances in memory plastic...'
'Annealed in any shape for a time, and codified, the structure of that shape is retained down to the molecules.'
It's not really polite to tear the limbs off robots.
'...the imaginary companions discovered by needful children.'
''Pardon me, Struthers,' he broke in suddenly... 'haven't you a section of the factory where only robot labor is employed?''
'I opened the oblong box, where lay the automatons side by side...'
'They tied the memory to the bloodline and that was their record!'
