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"To get anywhere, or even live a long time, a man has to guess, and guess right, over and over again, without enough data for a logical answer."
- Robert Heinlein

Rooftop Windmill  
  Renewable energy source for the home.  

Sometimes a man has a windmill on his roof for light and heat; then, the harder the wintry blasts may blow the brighter and warmer becomes the house, the current passing through a storage battery to make it more steady.
From A Journey In Other Worlds, by John Jacob Astor IV.
Published by Unknown in 1894
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Additional resources:
  More Ideas and Technology from A Journey In Other Worlds
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  Tech news articles related to A Journey In Other Worlds
  Tech news articles related to works by John Jacob Astor IV

Rooftop Windmill-related news articles:
  - Personal Wind Turbines And Rooftop Windmills
  - Harvesting Energy From Internal Resonance

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