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"I was perfectly satisfied to write science fiction knowing that it would pay very little, that it would be seen by only a very few people."
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![]() A clever twist on the idea of artificial gravity, or a gravity shield, inside a spacecraft.
The Heaviside layer (also called the Kennelly-Heaviside layer) is a layer of ionized gas that occurs at about 56-93 miles above the earth's surface. It makes possible radio waves that can propagate beyond line-of-sight.
Compare to the gravity screen from Edmond Hamilton's 1929 classic Crashing Suns. Comment/Join this discussion ( 0 ) | RSS/XML | Blog This | Additional
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