Large Heat-Powered Wood Stove Fan - This is awesome!!!!!!
Rocket Stove Mass Heater. "heat your home with 80% to 90% less wood; exhaust is nearly pure steam and CO2 (a little smoke at the beginning); the heat from one fire can last for days; you can build one in a day and half; folks have built them spending less than $20"
DIY. Solar Panel made of aluminum cans
Design or Not Design / Tunna Tinn opener / Wood / Could be something for UNIVERSAL DESIGN, or what do you think? / by muji
Do It Yourself 12 Volt Solar Power (Paperback)
If you want to introduce alternative power supplies around the home and garden or even live totally off-grid in your boat, caravan, or yurt and need a practical introduction to solar power and 12-volt
iPhone, iTouch, Android, all laser-tag-loving smartphone owners, get ready for the AppTag Laser Blaster! The app-and-apparatus duo that will turn your basement, your backyard, and your 3-mile stumble home from the bar at 3 a.m. into an intense competition of agility, precision, and tactical prowess. A shooter console attaches directly to players' phones for firing, and communicates activity via high frequency sounds imperceptible to mammalian ears (no Bluetooth or WiFi setup required).
Manufactum : Firetube Herd | Sumally
Whether you're a curious hiker or nervous camper, leaf identification is a useful skill to have. Learn how to identify different types of non-poisonous and poisonous leaves, like poison sumac, sugar maple, poison oak, gingko, and poison ivy. 27 Leaves Every Camper Should Know How to Identify | Red Rover Camping