Soft Technology Issue 55

$2.00

Soft Technology Issue 55 is out now!

  • Build your own low-voltage speed controller
  • Precious paper
  • Mighty micro-hydro
  • Hemp: a new Australian industry?
  • Solar-powered bicycle ferry
  • Cyclists unite! Critical Mass in the city
  • Sydney?s green department store
  • Power struggle
  • Wave power: a turbulent history
  • Colour and cancer: the hazards of house paint
  • Solar renovation on a budget
  • The Natural Step
  • Printing with 12 volts
  • Charging nicads
  • Back to basics ? power conversion
  • Homebuilt Dynamo
  • Tracking the outback sun
  • Grinding grain with the wind
  • Whirlpool of rubbish
  • Green Power in the suburbs
  • Make a model wind turbine
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Product Description

Issue Contents:

  • Build your own low-voltage speed controller

    A simple design that converts low-voltage appliances from single-speed to variable-speed without wasting power. It also works brilliantly as a lightdimmer!
  • Printing with 12 volts

    The second article of our green home office series. We show you how to run a printer directly from twelve volts.
  • Charging nicads

    Having problems with rechargeable batteries? You might need to burp them!
  • Back to basics ? power conversion

    We explain how electricity is converted from one form to another.
  • Homebuilt Dynamo

    A generator made from readily available tools and materials that can produce over one kilowatt of power from low-speed sources such as wind turbines.
  • Tracking the outback sun

    Kilbarri is now an outback town like no other. It?s power supply is boosted by the nation?s largest grid-connected photovoltaic array.
  • Grinding grain with the wind

    A cheap, easy-to-produce windmill designed to take the grind out of flourmaking for Tigryan women.
  • Whirlpool of rubbish

    A promising new stormwater drainage system that uses centrifugal force to collect rubbish as large as logs and as small as matchheads.
  • Green Power in the suburbs

    User-pay green electricity tariffs for those who don?t want renewables on or around their homes.
  • The Natural Step

    A scientific model for sustainable development that is transforming Sweden is now being introduced to Australia.
  • Solar renovation on a budget

    Architect Eve Laron gives good advice to people with more sense than money.
  • Colour and cancer: the hazards of house paint

    Synthetic paints can make your home unhealthy to live in. We explain why plant-based alternatives are better, where they are available, and how much they cost.
  • Precious paper

    As long as the paperless office remains a myth, recycling paper is essential. We show you how to make your own paper from waste material at home.
  • Mighty micro-hydro

    Leon and Angie no longer burn wood for their hydronic heating system and domestic hot water thanks to their two marvellous micro-hydro units.
  • Hemp: a new Australian industry?

    Many other countries have started growing non-narcotic species of hemp plants commercially. If current trials in Australia are successful, hemp may soon help the environment, economy and farmers here too.
  • Solar-powered bicycle ferry

    This Dutch ferry help keeps cycling fun and non-polluting.
  • Cyclists unite! Critical Mass in the city

    Cyclists around the world are bringing attention to their needs by riding home en masse.
  • Sydney?s green department store

    A one-stop shop for green goods and services.
  • Power struggle

    A Queensland couple is being forced to connect to the electrical grid.
  • Wave power: a turbulent history

    A young technology that in recent years has had difficulty staying afloat might soon prove itself commercially viable.
  • Make a model wind turbine

    An easy-to-assemble horizontal-axis wind turbine made from a drink can or plastic bottle.