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"The whole problem of energy sources is going to be solved by little solutions, not by some big new piece of technology that does everything. We got into this crisis by believing that we had one big piece of technology that would do everything (oil)."
- Gregory Benford

Planetoid With Earth Gravity  
   

Another way to accomplish the feat of people having some sort of normal life on a tiny asteroid or planetoid is to have more mass than usual.

Beneath them, growing larger by the second, a small world rushed up to meet them. The readings in the Planetograph seemed to have gone crazy. It showed diameter 1200 miles; composition mineral and radio-active. Gravity seven-eighths of Terra. It couldn’t be! Unless perhaps this unknown planetoid was the legendary core of the world that at one time was supposed to have existed between Jupiter and Mars. Only that could possibly explain the incredible gravity.
Technovelgy from The Soul Eaters, by William Conover.
Published by Planet Stories in 1944
Additional resources -

Compare to the Chardion Field from Star of Dreams (1941) by Jack Williamson.

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  More Ideas and Technology from The Soul Eaters
  More Ideas and Technology by William Conover
  Tech news articles related to The Soul Eaters
  Tech news articles related to works by William Conover

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