Recently, Troubled Times has added content to:
On May 13, 2005
Bike Gen TOPIC: Cordless Drills, DC Generators, Hand Crank, Modified, BikeGen, RPM, Construction, Battery, PDF
Hydropower TOPIC: Water Wheel , Power Output
Crank TOPIC: Hand Crank
On Feb 22, 2005
Safe Water TOPIC: Open Teapot, Close Teapot, Coil Exchange, Full Exchange, HydroCarbon, Pressure Cooker, Parts List, Bucket Collection, Steam Cautions, Umbrella Tent, Cotton Cloth, Stacked Pot, Two Pots, Pie Pan, Small Parts, Simple Assembly, Sustainable Village.