|  |  |  | The Calorie Man by  Paolo Bacigalupi:Science Fiction Inventions, Technology and Ideas
Fascinating variation on the Johnny Appleseed story in a dystopian future in which gasoline engines have gone the way of the dodo. Why read this when you can read the novella-length story here? Select
      an invention: 
    
        |  Hyper-Developed Mulies Bioengineered animals that optimally transform vegetable matter into usable mechanical energy.
 |  
    
        |  Megadont An engineered mastodon, used to convert vegetable matter into energy.
 |  
    
        |  Sterile Seeds Seeds that are bioengineered to grow, but not to produce fertile seeds.
 |    Technovelgy.com is devoted
      to the creative inventions of science fiction authors and movie makers. Look
      for the Science Fiction Invention Category that
      interests you, the Glossary of Science Fiction
      Inventions, the Timeline of Science Fiction
      Inventions, or see what's New.Find new authors and technologies - Shop for yourself,
  your library and your lab.
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