Soft Technology Issue 4

$2.00

Soft Technology Issue 4 is out now!

  • Book Review
  • Compost Toilets
  • Energy Flashes
  • Solar Cell Update
  • Buying a solar colector
  • Sunmeter
  • Anemometer
  • Greenhouses
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SKU: R004. Category: .

Product Description

Issue Contents:

  • Book Review

    “Making Your Own Alcohol”.
  • Compost Toilets

    An ecological way of disposing of human wastes
  • Energy Flashes

    Buying a solar Collector, Electric Bike race, Renewed logs, Solar Stanley Steamer, Much Methane, Fast Breeder Heaters
  • Solar Cell Update

    The latest on the development of photovoltaics. Will they really become “dirt cheap”, and if so how.
  • Buying a solar colector

    Of all the solar water heating systems on the which will suit you, and how much will it cost. A review.
  • Sunmeter

    A simple meter which can be used for measuring the suns intensity.
  • Anemometer

    How to build a cheap,inexpensive anemometer which can be used to measure the wind with great flexibility.
  • Greenhouses

    An add-on greenhouse.