Harness Hydro Power with a Trompe

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ILLUSTRATION: MOTHER EARTH NEWS STAFF
This diagram shows the inner workings of a trompe and "blow-off" pipe.

The trompe. Its use dates back to the beginning of the Iron
Age, and yet — like many good ideas involving the
manufacture of power — the trompe concept has been all
but forgotten in the recent stampede to mine, refine, and
consume readily exploitable supplies of fossil fuels.

  • Published on Jul 1, 1977
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