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"…we store information differently, reading a science fiction story, to make it make sense."
- Samuel R. Delany
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| Molecular Sieve | ||
| A device that can extract any element from seawater. |
Clarke begins the story by pointing out that a cubic mile of sea water contains millions of tons of dissolved minerals - how best to get at them, when there are only about fifty pounds of gold per cubic mile?
| I put some of my young men to work and they have made what we call a 'molecular sieve.' ... It depends on very advanced wave-mechanical theories for its operation, but what it actually does is absurdly simple. We can choose any component of sea water we like, and get the sieve to take it out. With several units, working in series, we can take out one element after another. The efficiency's quite high, and the power consumption negligible. |
| From Tales from the White Hart,
by Arthur C. Clarke. Published by Ballantine Books in 1957 Additional resources -
|
This device comes from the short story The Man Who Ploughed The Sea, which was published in 1957 with the publication of Clarke's third collection of short stories Tales From The White Hart.
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'The wings were at full spread-rest, their delicate metal interleavings extended.'
'A record that wouldn't get lost and couldn't be destroyed.'
'LET ME TELL YOU HOW MUCH I'VE COME TO HATE YOU SINCE I BEGAN TO LIVE.'
'What he got was indeed a kiss. It was disconcerting. No kissing lips were visible.'
'I shall introduce myself. I am R. Daneel Olivaw... I am a robot. Were you not told?'
