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"I suspect that religion is a necessary evil in the childhood of our particular species. And that's one of the interesting things about contact with other intelligences: we could see what role, if any, religion plays in their development."
- Arthur C. Clarke
 |
| Membrane Balloon Helmet | ||
| A selectively permeable membrane worn as a helmet. |
When Hanville Svetz, time traveler from our future, tried the air in 12th century Britain, it was a bit rich for him.
| When next he left the extension cage, carrying the flight stick, Svetz was wearing another spin-off from the interstellar-exploration industries. It was a balloon, and he wore it over his head. It was also a selectively permeable membrane, intended to pass certain gasses in and others out, to make a breathing-air mixture inside. It was nearly invisible except at the rim. There, where light was refracted most severely, the balloon showed as a narrow golden circle enclosing Svetz's head. The effect was not unlike a halo as shown in medieval paintings. But Svetz didn't know about medieval paintings. |
| Technovelgy from The Flight of the Horse,
by Larry Niven. Published by Fantasy and Science Fiction in 1969 Additional resources -
|
This is a great idea - assuming that the parts of the atmosphere that you find essential are present.
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'If you're one of those rarities who haven't attended a rocket-polo "carnage", let me tell you it's a colorful affair.'
'They filed clumsily into the battleroom, like children in a swimming pool for the first time, clinging to the handholds along the side.'
'a walking balloon proceeded with long strides of its aluminum legs...'
'There was nowhere on the planet where science and technology could not provide one with a comfortable home...'
'Most men updated their PIP on New Year's Day...'
'...a misshapen, many-tentacled thing about twice the size of a man.'
