5,228 articles across preparedness, survival, and self-reliance topics.
An Arduino-based hidden bookcase door system offers secure access to a hidden space, ideal for emergencies. Requires Arduino, servo motor, and latching mechanism. Program for specific access codes or signals. Test thoroughly and consider variations like voice recognition or remote access.
Allen Patterson's renewable energy system includes 24 solar panels, 2 batteries, 2 inverter/chargers, and a generator, providing energy independence and preparedness.
Build a 100 mpg car using a Locost chassis, Kubota diesel engine, and efficiency modifications like streamlined body, low-resistance tires, and lightweight materials.
Build a waste oil stove using salvaged materials, high-temperature paint, and ceramic insulation. Follow safety guidelines and maintain the stove for efficient operation.
Rewinding wind generators for slower speeds involves adjusting poles, coil turns, and wire gauge to maintain optimal voltage and current. Proper flux density and copper wire table use ensure efficient energy conversion and desired output.
Solar radiation, including ultraviolet light, influences atmospheric conditions by ionizing molecules and forming ozone, which absorbs harmful UV radiation. During solar minima, reduced solar activity leads to ozone layer thinning, allowing more UV radiation to reach Earth, affecting atmospheric dynamics and potentially climate patterns.
Build a windmill with a 24-foot or 12-foot diameter wheel, using cast iron bearings, bevel-wheels, and precise tail assembly alignment for optimal energy capture.