Wind-Powered Washing Machine from WWII
Build a wind-powered washing machine using a propeller, drum, and plunger. Fill with water and soap, position in windy area, and agitate clothes. Clean and maintain regularly.
Windmill and Solar Still Technical Specifications and Applications
Brace Research Institute developed a Savonius rotor windmill producing 500 gallons per hour at 8 meters depth, suitable for rural areas with limited water access, costing $350 USD. The institute also offers solar still manuals for $15-20 USD, providing a simple method for water purification.