Soft Technology Issue 15

$2.00

Soft Technology Issue 15 is out now!

  • BOOKS AND LETTERS
  • SOLAR ENERGY IN HOUSING
  • MONO PUMPS
  • ENERGY FLASHES
  • A SEPTIC TANK METHANE DIGESTER
  • THE FLUIDYNE
  • SIMPLE SOLAR PROJECTS
  • SOLAR ELECTRICITY
  • PARABOLIC TROUGH SOLAR COLLECTOR
  • HOT WATER FROM DUNG
  • THE A.T.A. REPORT
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Product Description

Issue Contents:

  • BOOKS AND LETTERS

  • HOT WATER FROM DUNG

    A cow dung powered water heater.
  • PARABOLIC TROUGH SOLAR COLLECTOR

    Up to 100?C with a simple trough collector.
  • SOLAR ELECTRICITY

    The most basic solar electric system cheap and simple.
  • SIMPLE SOLAR PROJECTS

    A regular column of solar experiments and construction projects.
  • THE FLUIDYNE

    A solar pump made of glassware and a few bits of plastic pipe.
  • A SEPTIC TANK METHANE DIGESTER

    How to convert your septic tank into a methane digester and how well it will work.
  • ENERGY FLASHES

    The Non Solar Collector, Solar Lighting, Wind Going Cheap, Sun Powered Railways
  • MONO PUMPS

    The Mono Wind Pump, how do they work,why are those supposed to be better and what are their problems.
  • SOLAR ENERGY IN HOUSING

    How use of solar energy can make buildings better, The golden rules and the basics of why it happens.
  • THE A.T.A. REPORT

    News and activities from the Alternative Technology Association.