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"My feeling is that the chance of our surviving into the twenty-first century as working civilization is less than fifty percent but greater than zero."
- Isaac Asimov
 |
| Aeriduct (Rain Maker) | ||
| A specific means of producing rain. |
In the future envisioned by Astor, many things that we regard as variable are under the full control of an ingenious humanity.
| "Rain-making is another subject removed from the uncertainties, and has become an absolute science. We produce clouds by explosions in the atmosphere's heights and by surface air forced by blowers through large pipes up the side of a mountain or natural elevation and there discharged through an opening in the top of a tower built on the highest part. The aeriduct is incased in a poor heat-conductor, so that the air retains its warmth until discharged, when it is cooled by expansion and the surrounding cold air. Condensation takes place and soon serves to start a rain. |
| From A Journey In Other Worlds,
by John Jacob Astor IV. Published by D. Appleton and Co. in 1894 Additional resources -
|
Even at this point in the future, weather control is not perfect. Just one more thing is left to do:
"Yet, until the earth's axis is straightened, we must be more or less dependent on the eccentricities of the weather, with extremes of heat and cold, droughts and floods, which last are of course largely the result of several months' moisture held on the ground in the form of snow, the congestion being relieved suddenly by the warm spring rains.
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