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"Evolutionary success ... is going to absolutely require mobility on, at a minimum, an interplanetary scale. We either go or we die out."
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![]() Getting a pound of material into Earth orbit is expensive. Do space ships have to be made of heavy, rigid metal?
Read this description of putting together a space bubble craft in orbit:
At once Frank was furiously busy, working the darkened stellene of his bubb from the drum, letting it spread like a long wisp of silvery cobweb against the stars, letting it inflate from the air-flasks to a firm and beautiful circle, attaching the rigging, the fine, radial spokewires—for which the blastoff drum itself now formed the hub. To the latter he now attached his full-size, sun-powered ionic motor. Then he crept through the double sealing flaps of the airlock, to install the air-restorer and the moisture-reclaimer in the circular, tunnel-like interior that would now be his habitation.
He wasn't racing anything except time, but he had worked as fast as he could. Still, Gimp Hines had finished rigging his bubb, minutes ahead of Frank, or anybody else. On second thought, maybe this was natural enough. Here, where there was no weight, his useless leg made no difference—as the space-fitness examiners must have known. Besides, Gimp had talented fingers and a keen mechanical sense, and had always tried harder than anybody.
Ramos was almost as quick. Frank wasn't much farther behind. The Kuzaks were likewise doing all right. Two-and-Two was trailing some, but not very badly.
"Spin 'em!" Gimp shouted. "Don't forget to spin 'em for centrifuge-gravity and stability!"
And so they did, each gripping the rigging at their bubb rims, and using the minute but accumulative thrust of the shoulder ionics of their Archers, to provide the push. The inflated rings turned like wheels with perfect bearings. In the all but frictionless void, they could go on turning for decades, without additional impetus.
"We've made it—we're Out Here—we're all right!" Ramos was shouting with a fierce exultation.
Compare to the living-globes from The Beat Cluster (1961) by Fritz Leiber. See the Inflatable Expansion Bubble from Crashlander (1994), by Larry Niven; this article contains more information about Werner von Braun's inflatable space station idea from 1952.
Also, see the airtight tent from Gallun's 1951 story Asteroid of Fear and the Survival Bubble (Beach Ball) from Footfall (1985) by Larry Niven (w/J. Pournelle).
You might also enjoy reading about the asteroid rocket from Salvage in Space (1933) by Jack Williamson which is used to make a sort of minimalist space ship. Comment/Join this discussion ( 0 ) | RSS/XML | Blog This | Additional
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